Finding the Fourth Proportional to 81,869.50, 112,978.80 and 46,059.57

Step by Step Solution

1. Step 1: Write the proportion equation
   81,869.50 : 112,978.80 = 46,059.57 : x
2. Step 2: Convert to fraction form
   81,869.50/112,978.80 = 46,059.57/x
3. Step 3: Cross multiply
   81,869.50x = 112,978.80 × 46,059.57
4. Step 4: Simplify right side
   81,869.50x = 5,203,754,947.12
5. Step 5: Solve for x
   x = 5,203,754,947.12/81,869.50
6. Step 6: Final answer
   x = 63,561.58