Finding the Fourth Proportional to 147,914,308.48, 221,439,739.20 and 86,314,702.72

Step by Step Solution

1. Step 1: Write the proportion equation
   147,914,308.48 : 221,439,739.20 = 86,314,702.72 : x
2. Step 2: Convert to fraction form
   147,914,308.48/221,439,739.20 = 86,314,702.72/x
3. Step 3: Cross multiply
   147,914,308.48x = 221,439,739.20 × 86,314,702.72
4. Step 4: Simplify right side
   147,914,308.48x = 19,113,505,259,442,328
5. Step 5: Solve for x
   x = 19,113,505,259,442,328/147,914,308.48
6. Step 6: Final answer
   x = 129,220,123.84