Finding the Fourth Proportional to 9,679.10, 14,533.05 and 7,490.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,679.10 : 14,533.05 = 7,490.30 : x
2. Step 2: Convert to fraction form
   9,679.10/14,533.05 = 7,490.30/x
3. Step 3: Cross multiply
   9,679.10x = 14,533.05 × 7,490.30
4. Step 4: Simplify right side
   9,679.10x = 108,856,904.42
5. Step 5: Solve for x
   x = 108,856,904.42/9,679.10
6. Step 6: Final answer
   x = 11,246.59