Finding the Fourth Proportional to 72,557.64, 108,794.42 and 28,132.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,557.64 : 108,794.42 = 28,132.38 : x
2. Step 2: Convert to fraction form
   72,557.64/108,794.42 = 28,132.38/x
3. Step 3: Cross multiply
   72,557.64x = 108,794.42 × 28,132.38
4. Step 4: Simplify right side
   72,557.64x = 3,060,645,965.32
5. Step 5: Solve for x
   x = 3,060,645,965.32/72,557.64
6. Step 6: Final answer
   x = 42,182.27