Finding the Fourth Proportional to 11,899.04, 16,422.62 and 9,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,899.04 : 16,422.62 = 9,061.88 : x
2. Step 2: Convert to fraction form
   11,899.04/16,422.62 = 9,061.88/x
3. Step 3: Cross multiply
   11,899.04x = 16,422.62 × 9,061.88
4. Step 4: Simplify right side
   11,899.04x = 148,819,684.30
5. Step 5: Solve for x
   x = 148,819,684.30/11,899.04
6. Step 6: Final answer
   x = 12,506.87