Finding the Fourth Proportional to 42,915.99, 59,231.25 and 25,021.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,915.99 : 59,231.25 = 25,021.47 : x
2. Step 2: Convert to fraction form
   42,915.99/59,231.25 = 25,021.47/x
3. Step 3: Cross multiply
   42,915.99x = 59,231.25 × 25,021.47
4. Step 4: Simplify right side
   42,915.99x = 1,482,052,944.94
5. Step 5: Solve for x
   x = 1,482,052,944.94/42,915.99
6. Step 6: Final answer
   x = 34,533.82