Finding the Fourth Proportional to 81,869.13, 112,978.17 and 46,059.18

Step by Step Solution

1. Step 1: Write the proportion equation
   81,869.13 : 112,978.17 = 46,059.18 : x
2. Step 2: Convert to fraction form
   81,869.13/112,978.17 = 46,059.18/x
3. Step 3: Cross multiply
   81,869.13x = 112,978.17 × 46,059.18
4. Step 4: Simplify right side
   81,869.13x = 5,203,681,868.10
5. Step 5: Solve for x
   x = 5,203,681,868.10/81,869.13
6. Step 6: Final answer
   x = 63,560.98