Finding the Fourth Proportional to 123,702.14, 185,409.77 and 57,002.15

Step by Step Solution

1. Step 1: Write the proportion equation
   123,702.14 : 185,409.77 = 57,002.15 : x
2. Step 2: Convert to fraction form
   123,702.14/185,409.77 = 57,002.15/x
3. Step 3: Cross multiply
   123,702.14x = 185,409.77 × 57,002.15
4. Step 4: Simplify right side
   123,702.14x = 10,568,754,308.95
5. Step 5: Solve for x
   x = 10,568,754,308.95/123,702.14
6. Step 6: Final answer
   x = 85,437.12