Finding the Fourth Proportional to 72,557.47, 108,864.15 and 28,215.46

Step by Step Solution

1. Step 1: Write the proportion equation
   72,557.47 : 108,864.15 = 28,215.46 : x
2. Step 2: Convert to fraction form
   72,557.47/108,864.15 = 28,215.46/x
3. Step 3: Cross multiply
   72,557.47x = 108,864.15 × 28,215.46
4. Step 4: Simplify right side
   72,557.47x = 3,071,652,069.76
5. Step 5: Solve for x
   x = 3,071,652,069.76/72,557.47
6. Step 6: Final answer
   x = 42,334.06