Finding the Fourth Proportional to 17,112.02, 25,668.93 and 5,426.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,112.02 : 25,668.93 = 5,426.15 : x
2. Step 2: Convert to fraction form
   17,112.02/25,668.93 = 5,426.15/x
3. Step 3: Cross multiply
   17,112.02x = 25,668.93 × 5,426.15
4. Step 4: Simplify right side
   17,112.02x = 139,283,336.17
5. Step 5: Solve for x
   x = 139,283,336.17/17,112.02
6. Step 6: Final answer
   x = 8,139.51