Finding the Fourth Proportional to 113,429.48, 156,530.02 and 63,127.40

Step by Step Solution

1. Step 1: Write the proportion equation
   113,429.48 : 156,530.02 = 63,127.40 : x
2. Step 2: Convert to fraction form
   113,429.48/156,530.02 = 63,127.40/x
3. Step 3: Cross multiply
   113,429.48x = 156,530.02 × 63,127.40
4. Step 4: Simplify right side
   113,429.48x = 9,881,333,184.55
5. Step 5: Solve for x
   x = 9,881,333,184.55/113,429.48
6. Step 6: Final answer
   x = 87,114.33