Finding the Fourth Proportional to 46,272.43, 69,436.29 and 42,508.05

Step by Step Solution

1. Step 1: Write the proportion equation
   46,272.43 : 69,436.29 = 42,508.05 : x
2. Step 2: Convert to fraction form
   46,272.43/69,436.29 = 42,508.05/x
3. Step 3: Cross multiply
   46,272.43x = 69,436.29 × 42,508.05
4. Step 4: Simplify right side
   46,272.43x = 2,951,601,287.13
5. Step 5: Solve for x
   x = 2,951,601,287.13/46,272.43
6. Step 6: Final answer
   x = 63,787.47