Finding the Fourth Proportional to 17,881.17, 26,826.59 and 5,401.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,881.17 : 26,826.59 = 5,401.60 : x
2. Step 2: Convert to fraction form
   17,881.17/26,826.59 = 5,401.60/x
3. Step 3: Cross multiply
   17,881.17x = 26,826.59 × 5,401.60
4. Step 4: Simplify right side
   17,881.17x = 144,906,490.09
5. Step 5: Solve for x
   x = 144,906,490.09/17,881.17
6. Step 6: Final answer
   x = 8,103.86