Finding the Fourth Proportional to 23,191.62, 32,002.32 and 13,120.98

Step by Step Solution

1. Step 1: Write the proportion equation
   23,191.62 : 32,002.32 = 13,120.98 : x
2. Step 2: Convert to fraction form
   23,191.62/32,002.32 = 13,120.98/x
3. Step 3: Cross multiply
   23,191.62x = 32,002.32 × 13,120.98
4. Step 4: Simplify right side
   23,191.62x = 419,901,800.67
5. Step 5: Solve for x
   x = 419,901,800.67/23,191.62
6. Step 6: Final answer
   x = 18,105.76