Finding the Fourth Proportional to 139,798,450,599.50, 209,674,717,647.86 and 60,188,567,541.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,798,450,599.50 : 209,674,717,647.86 = 60,188,567,541.86 : x
2. Step 2: Convert to fraction form
   139,798,450,599.50/209,674,717,647.86 = 60,188,567,541.86/x
3. Step 3: Cross multiply
   139,798,450,599.50x = 209,674,717,647.86 × 60,188,567,541.86
4. Step 4: Simplify right side
   139,798,450,599.50x = 12,620,020,904,968,646,033,408
5. Step 5: Solve for x
   x = 12,620,020,904,968,646,033,408/139,798,450,599.50
6. Step 6: Final answer
   x = 90,272,966,909.50