Finding the Fourth Proportional to 16,899.60, 23,326.47 and 10,931.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899.60 : 23,326.47 = 10,931.52 : x
2. Step 2: Convert to fraction form
   16,899.60/23,326.47 = 10,931.52/x
3. Step 3: Cross multiply
   16,899.60x = 23,326.47 × 10,931.52
4. Step 4: Simplify right side
   16,899.60x = 254,993,773.33
5. Step 5: Solve for x
   x = 254,993,773.33/16,899.60
6. Step 6: Final answer
   x = 15,088.75