Finding the Fourth Proportional to 42,006.96, 57,915.80 and 34,425.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,006.96 : 57,915.80 = 34,425.36 : x
2. Step 2: Convert to fraction form
   42,006.96/57,915.80 = 34,425.36/x
3. Step 3: Cross multiply
   42,006.96x = 57,915.80 × 34,425.36
4. Step 4: Simplify right side
   42,006.96x = 1,993,772,264.69
5. Step 5: Solve for x
   x = 1,993,772,264.69/42,006.96
6. Step 6: Final answer
   x = 47,462.90