Finding the Fourth Proportional to 112,757.30, 169,013.69 and 56,461.69

Step by Step Solution

1. Step 1: Write the proportion equation
   112,757.30 : 169,013.69 = 56,461.69 : x
2. Step 2: Convert to fraction form
   112,757.30/169,013.69 = 56,461.69/x
3. Step 3: Cross multiply
   112,757.30x = 169,013.69 × 56,461.69
4. Step 4: Simplify right side
   112,757.30x = 9,542,798,711.23
5. Step 5: Solve for x
   x = 9,542,798,711.23/112,757.30
6. Step 6: Final answer
   x = 84,631.32