Finding the Fourth Proportional to 10,274.73, 15,411.69 and 7,145.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.73 : 15,411.69 = 7,145.52 : x
2. Step 2: Convert to fraction form
   10,274.73/15,411.69 = 7,145.52/x
3. Step 3: Cross multiply
   10,274.73x = 15,411.69 × 7,145.52
4. Step 4: Simplify right side
   10,274.73x = 110,124,539.13
5. Step 5: Solve for x
   x = 110,124,539.13/10,274.73
6. Step 6: Final answer
   x = 10,718.00