Finding the Fourth Proportional to 10,881.33, 15,012.72 and 7,524.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,881.33 : 15,012.72 = 7,524.69 : x
2. Step 2: Convert to fraction form
   10,881.33/15,012.72 = 7,524.69/x
3. Step 3: Cross multiply
   10,881.33x = 15,012.72 × 7,524.69
4. Step 4: Simplify right side
   10,881.33x = 112,966,064.06
5. Step 5: Solve for x
   x = 112,966,064.06/10,881.33
6. Step 6: Final answer
   x = 10,381.64