Finding the Fourth Proportional to 112,891.27, 169,315.33 and 56,715.82

Step by Step Solution

1. Step 1: Write the proportion equation
   112,891.27 : 169,315.33 = 56,715.82 : x
2. Step 2: Convert to fraction form
   112,891.27/169,315.33 = 56,715.82/x
3. Step 3: Cross multiply
   112,891.27x = 169,315.33 × 56,715.82
4. Step 4: Simplify right side
   112,891.27x = 9,602,857,779.52
5. Step 5: Solve for x
   x = 9,602,857,779.52/112,891.27
6. Step 6: Final answer
   x = 85,062.89