Finding the Fourth Proportional to 113,443.31, 156,551.77 and 63,141.23

Step by Step Solution

1. Step 1: Write the proportion equation
   113,443.31 : 156,551.77 = 63,141.23 : x
2. Step 2: Convert to fraction form
   113,443.31/156,551.77 = 63,141.23/x
3. Step 3: Cross multiply
   113,443.31x = 156,551.77 × 63,141.23
4. Step 4: Simplify right side
   113,443.31x = 9,884,871,786.78
5. Step 5: Solve for x
   x = 9,884,871,786.78/113,443.31
6. Step 6: Final answer
   x = 87,134.90