Finding the Fourth Proportional to 83,858.32, 125,787.57 and 21,528.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,858.32 : 125,787.57 = 21,528.82 : x
2. Step 2: Convert to fraction form
   83,858.32/125,787.57 = 21,528.82/x
3. Step 3: Cross multiply
   83,858.32x = 125,787.57 × 21,528.82
4. Step 4: Simplify right side
   83,858.32x = 2,708,057,952.77
5. Step 5: Solve for x
   x = 2,708,057,952.77/83,858.32
6. Step 6: Final answer
   x = 32,293.25