Finding the Fourth Proportional to 10,498.53, 14,507.28 and 7,661.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,498.53 : 14,507.28 = 7,661.10 : x
2. Step 2: Convert to fraction form
   10,498.53/14,507.28 = 7,661.10/x
3. Step 3: Cross multiply
   10,498.53x = 14,507.28 × 7,661.10
4. Step 4: Simplify right side
   10,498.53x = 111,141,722.81
5. Step 5: Solve for x
   x = 111,141,722.81/10,498.53
6. Step 6: Final answer
   x = 10,586.41