Finding the Fourth Proportional to 72,653.43, 109,030.42 and 28,280.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,653.43 : 109,030.42 = 28,280.42 : x
2. Step 2: Convert to fraction form
   72,653.43/109,030.42 = 28,280.42/x
3. Step 3: Cross multiply
   72,653.43x = 109,030.42 × 28,280.42
4. Step 4: Simplify right side
   72,653.43x = 3,083,425,543.48
5. Step 5: Solve for x
   x = 3,083,425,543.48/72,653.43
6. Step 6: Final answer
   x = 42,440.19