Finding the Fourth Proportional to 139,968,105.30, 209,952,157.95 and 49,058,889.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,968,105.30 : 209,952,157.95 = 49,058,889.30 : x
2. Step 2: Convert to fraction form
   139,968,105.30/209,952,157.95 = 49,058,889.30/x
3. Step 3: Cross multiply
   139,968,105.30x = 209,952,157.95 × 49,058,889.30
4. Step 4: Simplify right side
   139,968,105.30x = 10,300,019,675,165,164
5. Step 5: Solve for x
   x = 10,300,019,675,165,164/139,968,105.30
6. Step 6: Final answer
   x = 73,588,333.95