Finding the Fourth Proportional to 74,435.60, 102,730 and 42,614.72

Step by Step Solution

1. Step 1: Write the proportion equation
   74,435.60 : 102,730 = 42,614.72 : x
2. Step 2: Convert to fraction form
   74,435.60/102,730 = 42,614.72/x
3. Step 3: Cross multiply
   74,435.60x = 102,730 × 42,614.72
4. Step 4: Simplify right side
   74,435.60x = 4,377,810,185.60
5. Step 5: Solve for x
   x = 4,377,810,185.60/74,435.60
6. Step 6: Final answer
   x = 58,813.39