Finding the Fourth Proportional to 42,686.72, 58,908.48 and 24,783.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,686.72 : 58,908.48 = 24,783.20 : x
2. Step 2: Convert to fraction form
   42,686.72/58,908.48 = 24,783.20/x
3. Step 3: Cross multiply
   42,686.72x = 58,908.48 × 24,783.20
4. Step 4: Simplify right side
   42,686.72x = 1,459,940,641.54
5. Step 5: Solve for x
   x = 1,459,940,641.54/42,686.72
6. Step 6: Final answer
   x = 34,201.28