Finding the Fourth Proportional to 83,685.33, 125,527.89 and 21,355.83

Step by Step Solution

1. Step 1: Write the proportion equation
   83,685.33 : 125,527.89 = 21,355.83 : x
2. Step 2: Convert to fraction form
   83,685.33/125,527.89 = 21,355.83/x
3. Step 3: Cross multiply
   83,685.33x = 125,527.89 × 21,355.83
4. Step 4: Simplify right side
   83,685.33x = 2,680,752,279.10
5. Step 5: Solve for x
   x = 2,680,752,279.10/83,685.33
6. Step 6: Final answer
   x = 32,033.72