Finding the Fourth Proportional to 9,238.71, 12,750.66 and 5,260.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.71 : 12,750.66 = 5,260.23 : x
2. Step 2: Convert to fraction form
   9,238.71/12,750.66 = 5,260.23/x
3. Step 3: Cross multiply
   9,238.71x = 12,750.66 × 5,260.23
4. Step 4: Simplify right side
   9,238.71x = 67,071,404.25
5. Step 5: Solve for x
   x = 67,071,404.25/9,238.71
6. Step 6: Final answer
   x = 7,259.82