Finding the Fourth Proportional to 12,522.50, 17,282.67 and 7,219.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,522.50 : 17,282.67 = 7,219.02 : x
2. Step 2: Convert to fraction form
   12,522.50/17,282.67 = 7,219.02/x
3. Step 3: Cross multiply
   12,522.50x = 17,282.67 × 7,219.02
4. Step 4: Simplify right side
   12,522.50x = 124,763,978.12
5. Step 5: Solve for x
   x = 124,763,978.12/12,522.50
6. Step 6: Final answer
   x = 9,963.19