Finding the Fourth Proportional to 74,222.87, 102,428.69 and 42,391.82

Step by Step Solution

1. Step 1: Write the proportion equation
   74,222.87 : 102,428.69 = 42,391.82 : x
2. Step 2: Convert to fraction form
   74,222.87/102,428.69 = 42,391.82/x
3. Step 3: Cross multiply
   74,222.87x = 102,428.69 × 42,391.82
4. Step 4: Simplify right side
   74,222.87x = 4,342,138,633.43
5. Step 5: Solve for x
   x = 4,342,138,633.43/74,222.87
6. Step 6: Final answer
   x = 58,501.36