Finding the Fourth Proportional to 12,238.59, 16,890.63 and 7,522.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,238.59 : 16,890.63 = 7,522.88 : x
2. Step 2: Convert to fraction form
   12,238.59/16,890.63 = 7,522.88/x
3. Step 3: Cross multiply
   12,238.59x = 16,890.63 × 7,522.88
4. Step 4: Simplify right side
   12,238.59x = 127,066,069.95
5. Step 5: Solve for x
   x = 127,066,069.95/12,238.59
6. Step 6: Final answer
   x = 10,382.41