Finding the Fourth Proportional to 16,590.72, 24,881.76 and 7,808.16

Step by Step Solution

1. Step 1: Write the proportion equation
   16,590.72 : 24,881.76 = 7,808.16 : x
2. Step 2: Convert to fraction form
   16,590.72/24,881.76 = 7,808.16/x
3. Step 3: Cross multiply
   16,590.72x = 24,881.76 × 7,808.16
4. Step 4: Simplify right side
   16,590.72x = 194,280,763.16
5. Step 5: Solve for x
   x = 194,280,763.16/16,590.72
6. Step 6: Final answer
   x = 11,710.21