Finding the Fourth Proportional to 55,140, 82,737.33 and 21,859.32

Step by Step Solution

1. Step 1: Write the proportion equation
   55,140 : 82,737.33 = 21,859.32 : x
2. Step 2: Convert to fraction form
   55,140/82,737.33 = 21,859.32/x
3. Step 3: Cross multiply
   55,140x = 82,737.33 × 21,859.32
4. Step 4: Simplify right side
   55,140x = 1,808,581,772.42
5. Step 5: Solve for x
   x = 1,808,581,772.42/55,140
6. Step 6: Final answer
   x = 32,799.81