Finding the Fourth Proportional to 123,689.94, 185,382.90 and 57,037.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,689.94 : 185,382.90 = 57,037.56 : x
2. Step 2: Convert to fraction form
   123,689.94/185,382.90 = 57,037.56/x
3. Step 3: Cross multiply
   123,689.94x = 185,382.90 × 57,037.56
4. Step 4: Simplify right side
   123,689.94x = 10,573,788,281.72
5. Step 5: Solve for x
   x = 10,573,788,281.72/123,689.94
6. Step 6: Final answer
   x = 85,486.24