Finding the Fourth Proportional to 10,861.33, 16,303.52 and 9,619.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,861.33 : 16,303.52 = 9,619.98 : x
2. Step 2: Convert to fraction form
   10,861.33/16,303.52 = 9,619.98/x
3. Step 3: Cross multiply
   10,861.33x = 16,303.52 × 9,619.98
4. Step 4: Simplify right side
   10,861.33x = 156,839,585.44
5. Step 5: Solve for x
   x = 156,839,585.44/10,861.33
6. Step 6: Final answer
   x = 14,440.18