Finding the Fourth Proportional to 17,127.59, 25,685.91 and 5,438.07

Step by Step Solution

1. Step 1: Write the proportion equation
   17,127.59 : 25,685.91 = 5,438.07 : x
2. Step 2: Convert to fraction form
   17,127.59/25,685.91 = 5,438.07/x
3. Step 3: Cross multiply
   17,127.59x = 25,685.91 × 5,438.07
4. Step 4: Simplify right side
   17,127.59x = 139,681,776.59
5. Step 5: Solve for x
   x = 139,681,776.59/17,127.59
6. Step 6: Final answer
   x = 8,155.37