Finding the Fourth Proportional to 42,915.69, 59,199.12 and 25,008.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,915.69 : 59,199.12 = 25,008.75 : x
2. Step 2: Convert to fraction form
   42,915.69/59,199.12 = 25,008.75/x
3. Step 3: Cross multiply
   42,915.69x = 59,199.12 × 25,008.75
4. Step 4: Simplify right side
   42,915.69x = 1,480,495,992.30
5. Step 5: Solve for x
   x = 1,480,495,992.30/42,915.69
6. Step 6: Final answer
   x = 34,497.78