Finding the Fourth Proportional to 11,642.74, 17,451.98 and 5,397.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,642.74 : 17,451.98 = 5,397.61 : x
2. Step 2: Convert to fraction form
   11,642.74/17,451.98 = 5,397.61/x
3. Step 3: Cross multiply
   11,642.74x = 17,451.98 × 5,397.61
4. Step 4: Simplify right side
   11,642.74x = 94,199,028.38
5. Step 5: Solve for x
   x = 94,199,028.38/11,642.74
6. Step 6: Final answer
   x = 8,090.80