Finding the Fourth Proportional to 9,240.72, 12,756.38 and 5,888.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,240.72 : 12,756.38 = 5,888.13 : x
2. Step 2: Convert to fraction form
   9,240.72/12,756.38 = 5,888.13/x
3. Step 3: Cross multiply
   9,240.72x = 12,756.38 × 5,888.13
4. Step 4: Simplify right side
   9,240.72x = 75,111,223.77
5. Step 5: Solve for x
   x = 75,111,223.77/9,240.72
6. Step 6: Final answer
   x = 8,128.29