Finding the Fourth Proportional to 42,690.72, 58,914 and 24,787.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,690.72 : 58,914 = 24,787.20 : x
2. Step 2: Convert to fraction form
   42,690.72/58,914 = 24,787.20/x
3. Step 3: Cross multiply
   42,690.72x = 58,914 × 24,787.20
4. Step 4: Simplify right side
   42,690.72x = 1,460,313,100.80
5. Step 5: Solve for x
   x = 1,460,313,100.80/42,690.72
6. Step 6: Final answer
   x = 34,206.80