Finding the Fourth Proportional to 74,812.16, 103,237.12 and 42,958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,812.16 : 103,237.12 = 42,958.72 : x
2. Step 2: Convert to fraction form
   74,812.16/103,237.12 = 42,958.72/x
3. Step 3: Cross multiply
   74,812.16x = 103,237.12 × 42,958.72
4. Step 4: Simplify right side
   74,812.16x = 4,434,934,531.69
5. Step 5: Solve for x
   x = 4,434,934,531.69/74,812.16
6. Step 6: Final answer
   x = 59,280.93