Finding the Fourth Proportional to 113,433.31, 156,536.44 and 63,132.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,433.31 : 156,536.44 = 63,132.31 : x
2. Step 2: Convert to fraction form
   113,433.31/156,536.44 = 63,132.31/x
3. Step 3: Cross multiply
   113,433.31x = 156,536.44 × 63,132.31
4. Step 4: Simplify right side
   113,433.31x = 9,882,507,056.38
5. Step 5: Solve for x
   x = 9,882,507,056.38/113,433.31
6. Step 6: Final answer
   x = 87,121.74