Finding the Fourth Proportional to 10,877.32, 16,380.43 and 9,507.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,877.32 : 16,380.43 = 9,507.16 : x
2. Step 2: Convert to fraction form
   10,877.32/16,380.43 = 9,507.16/x
3. Step 3: Cross multiply
   10,877.32x = 16,380.43 × 9,507.16
4. Step 4: Simplify right side
   10,877.32x = 155,731,368.88
5. Step 5: Solve for x
   x = 155,731,368.88/10,877.32
6. Step 6: Final answer
   x = 14,317.07