Finding the Fourth Proportional to 9,464.56, 13,060.67 and 5,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,464.56 : 13,060.67 = 5,428.50 : x
2. Step 2: Convert to fraction form
   9,464.56/13,060.67 = 5,428.50/x
3. Step 3: Cross multiply
   9,464.56x = 13,060.67 × 5,428.50
4. Step 4: Simplify right side
   9,464.56x = 70,899,879.75
5. Step 5: Solve for x
   x = 70,899,879.75/9,464.56
6. Step 6: Final answer
   x = 7,491.09