Finding the Fourth Proportional to 17,877.72, 26,807.94 and 5,395.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,877.72 : 26,807.94 = 5,395.38 : x
2. Step 2: Convert to fraction form
   17,877.72/26,807.94 = 5,395.38/x
3. Step 3: Cross multiply
   17,877.72x = 26,807.94 × 5,395.38
4. Step 4: Simplify right side
   17,877.72x = 144,639,023.32
5. Step 5: Solve for x
   x = 144,639,023.32/17,877.72
6. Step 6: Final answer
   x = 8,090.46