Finding the Fourth Proportional to 11,621.02, 16,007.70 and 9,376.61

Step by Step Solution

1. Step 1: Write the proportion equation
   11,621.02 : 16,007.70 = 9,376.61 : x
2. Step 2: Convert to fraction form
   11,621.02/16,007.70 = 9,376.61/x
3. Step 3: Cross multiply
   11,621.02x = 16,007.70 × 9,376.61
4. Step 4: Simplify right side
   11,621.02x = 150,097,978.69
5. Step 5: Solve for x
   x = 150,097,978.69/11,621.02
6. Step 6: Final answer
   x = 12,916.08