Finding the Fourth Proportional to 42,917.77, 59,212.34 and 25,915.55

Step by Step Solution

1. Step 1: Write the proportion equation
   42,917.77 : 59,212.34 = 25,915.55 : x
2. Step 2: Convert to fraction form
   42,917.77/59,212.34 = 25,915.55/x
3. Step 3: Cross multiply
   42,917.77x = 59,212.34 × 25,915.55
4. Step 4: Simplify right side
   42,917.77x = 1,534,520,477.02
5. Step 5: Solve for x
   x = 1,534,520,477.02/42,917.77
6. Step 6: Final answer
   x = 35,754.90