Finding the Fourth Proportional to 74,947.32, 103,433.20 and 42,683.30

Step by Step Solution

1. Step 1: Write the proportion equation
   74,947.32 : 103,433.20 = 42,683.30 : x
2. Step 2: Convert to fraction form
   74,947.32/103,433.20 = 42,683.30/x
3. Step 3: Cross multiply
   74,947.32x = 103,433.20 × 42,683.30
4. Step 4: Simplify right side
   74,947.32x = 4,414,870,457.43
5. Step 5: Solve for x
   x = 4,414,870,457.43/74,947.32
6. Step 6: Final answer
   x = 58,906.32