Finding the Fourth Proportional to 72,916.80, 100,632.32 and 42,700.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,916.80 : 100,632.32 = 42,700.24 : x
2. Step 2: Convert to fraction form
   72,916.80/100,632.32 = 42,700.24/x
3. Step 3: Cross multiply
   72,916.80x = 100,632.32 × 42,700.24
4. Step 4: Simplify right side
   72,916.80x = 4,297,024,215.76
5. Step 5: Solve for x
   x = 4,297,024,215.76/72,916.80
6. Step 6: Final answer
   x = 58,930.51