Finding the Fourth Proportional to 83,871.50, 125,807.25 and 21,542

Step by Step Solution

1. Step 1: Write the proportion equation
   83,871.50 : 125,807.25 = 21,542 : x
2. Step 2: Convert to fraction form
   83,871.50/125,807.25 = 21,542/x
3. Step 3: Cross multiply
   83,871.50x = 125,807.25 × 21,542
4. Step 4: Simplify right side
   83,871.50x = 2,710,139,779.50
5. Step 5: Solve for x
   x = 2,710,139,779.50/83,871.50
6. Step 6: Final answer
   x = 32,313