Finding the Fourth Proportional to 9,918.32, 13,686.72 and 5,938.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,918.32 : 13,686.72 = 5,938.52 : x
2. Step 2: Convert to fraction form
   9,918.32/13,686.72 = 5,938.52/x
3. Step 3: Cross multiply
   9,918.32x = 13,686.72 × 5,938.52
4. Step 4: Simplify right side
   9,918.32x = 81,278,860.45
5. Step 5: Solve for x
   x = 81,278,860.45/9,918.32
6. Step 6: Final answer
   x = 8,194.82