Finding the Fourth Proportional to 8,875.30, 12,245.72 and 5,425.01

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.30 : 12,245.72 = 5,425.01 : x
2. Step 2: Convert to fraction form
   8,875.30/12,245.72 = 5,425.01/x
3. Step 3: Cross multiply
   8,875.30x = 12,245.72 × 5,425.01
4. Step 4: Simplify right side
   8,875.30x = 66,433,105.79
5. Step 5: Solve for x
   x = 66,433,105.79/8,875.30
6. Step 6: Final answer
   x = 7,485.17