Finding the Fourth Proportional to 55,213.83, 82,868.00 and 21,957.30

Step by Step Solution

1. Step 1: Write the proportion equation
   55,213.83 : 82,868.00 = 21,957.30 : x
2. Step 2: Convert to fraction form
   55,213.83/82,868.00 = 21,957.30/x
3. Step 3: Cross multiply
   55,213.83x = 82,868.00 × 21,957.30
4. Step 4: Simplify right side
   55,213.83x = 1,819,557,426.61
5. Step 5: Solve for x
   x = 1,819,557,426.61/55,213.83
6. Step 6: Final answer
   x = 32,954.74