Finding the Fourth Proportional to 42,874.16, 59,168.54 and 25,878.17

Step by Step Solution

1. Step 1: Write the proportion equation
   42,874.16 : 59,168.54 = 25,878.17 : x
2. Step 2: Convert to fraction form
   42,874.16/59,168.54 = 25,878.17/x
3. Step 3: Cross multiply
   42,874.16x = 59,168.54 × 25,878.17
4. Step 4: Simplify right side
   42,874.16x = 1,531,173,720.77
5. Step 5: Solve for x
   x = 1,531,173,720.77/42,874.16
6. Step 6: Final answer
   x = 35,713.21