Finding the Fourth Proportional to 16,926.01, 25,389.95 and 5,238.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,926.01 : 25,389.95 = 5,238.31 : x
2. Step 2: Convert to fraction form
   16,926.01/25,389.95 = 5,238.31/x
3. Step 3: Cross multiply
   16,926.01x = 25,389.95 × 5,238.31
4. Step 4: Simplify right side
   16,926.01x = 133,000,428.98
5. Step 5: Solve for x
   x = 133,000,428.98/16,926.01
6. Step 6: Final answer
   x = 7,857.75