Finding the Fourth Proportional to 42,688.32, 58,915.20 and 24,779.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,688.32 : 58,915.20 = 24,779.48 : x
2. Step 2: Convert to fraction form
   42,688.32/58,915.20 = 24,779.48/x
3. Step 3: Cross multiply
   42,688.32x = 58,915.20 × 24,779.48
4. Step 4: Simplify right side
   42,688.32x = 1,459,888,020.10
5. Step 5: Solve for x
   x = 1,459,888,020.10/42,688.32
6. Step 6: Final answer
   x = 34,198.77