Finding the Fourth Proportional to 31,074.78, 42,880.57 and 17,461.78

Step by Step Solution

1. Step 1: Write the proportion equation
   31,074.78 : 42,880.57 = 17,461.78 : x
2. Step 2: Convert to fraction form
   31,074.78/42,880.57 = 17,461.78/x
3. Step 3: Cross multiply
   31,074.78x = 42,880.57 × 17,461.78
4. Step 4: Simplify right side
   31,074.78x = 748,771,079.61
5. Step 5: Solve for x
   x = 748,771,079.61/31,074.78
6. Step 6: Final answer
   x = 24,095.78