Finding the Fourth Proportional to 139,581,141.12, 209,379,584.91 and 42,540,014.52

Step by Step Solution

1. Step 1: Write the proportion equation
   139,581,141.12 : 209,379,584.91 = 42,540,014.52 : x
2. Step 2: Convert to fraction form
   139,581,141.12/209,379,584.91 = 42,540,014.52/x
3. Step 3: Cross multiply
   139,581,141.12x = 209,379,584.91 × 42,540,014.52
4. Step 4: Simplify right side
   139,581,141.12x = 8,907,010,582,262,973
5. Step 5: Solve for x
   x = 8,907,010,582,262,973/139,581,141.12
6. Step 6: Final answer
   x = 63,812,421.30