Finding the Fourth Proportional to 83,685.32, 125,527.91 and 21,355.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,685.32 : 125,527.91 = 21,355.82 : x
2. Step 2: Convert to fraction form
   83,685.32/125,527.91 = 21,355.82/x
3. Step 3: Cross multiply
   83,685.32x = 125,527.91 × 21,355.82
4. Step 4: Simplify right side
   83,685.32x = 2,680,750,716.52
5. Step 5: Solve for x
   x = 2,680,750,716.52/83,685.32
6. Step 6: Final answer
   x = 32,033.71