Finding the Fourth Proportional to 74,152.15, 102,348.27 and 42,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,152.15 : 102,348.27 = 42,339.50 : x
2. Step 2: Convert to fraction form
   74,152.15/102,348.27 = 42,339.50/x
3. Step 3: Cross multiply
   74,152.15x = 102,348.27 × 42,339.50
4. Step 4: Simplify right side
   74,152.15x = 4,333,374,577.67
5. Step 5: Solve for x
   x = 4,333,374,577.67/74,152.15
6. Step 6: Final answer
   x = 58,438.96