Finding the Fourth Proportional to 10,519.32, 15,771.72 and 7,010.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,519.32 : 15,771.72 = 7,010.40 : x
2. Step 2: Convert to fraction form
   10,519.32/15,771.72 = 7,010.40/x
3. Step 3: Cross multiply
   10,519.32x = 15,771.72 × 7,010.40
4. Step 4: Simplify right side
   10,519.32x = 110,566,065.89
5. Step 5: Solve for x
   x = 110,566,065.89/10,519.32
6. Step 6: Final answer
   x = 10,510.76