Finding the Fourth Proportional to 11,681, 17,501.28 and 7,874.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,681 : 17,501.28 = 7,874.52 : x
2. Step 2: Convert to fraction form
   11,681/17,501.28 = 7,874.52/x
3. Step 3: Cross multiply
   11,681x = 17,501.28 × 7,874.52
4. Step 4: Simplify right side
   11,681x = 137,814,179.39
5. Step 5: Solve for x
   x = 137,814,179.39/11,681
6. Step 6: Final answer
   x = 11,798.15