Finding the Fourth Proportional to 17,113.77, 25,671.56 and 5,427.90

Step by Step Solution

1. Step 1: Write the proportion equation
   17,113.77 : 25,671.56 = 5,427.90 : x
2. Step 2: Convert to fraction form
   17,113.77/25,671.56 = 5,427.90/x
3. Step 3: Cross multiply
   17,113.77x = 25,671.56 × 5,427.90
4. Step 4: Simplify right side
   17,113.77x = 139,342,660.52
5. Step 5: Solve for x
   x = 139,342,660.52/17,113.77
6. Step 6: Final answer
   x = 8,142.14