Finding the Fourth Proportional to 23,191.83, 32,004.72 and 13,120.07

Step by Step Solution

1. Step 1: Write the proportion equation
   23,191.83 : 32,004.72 = 13,120.07 : x
2. Step 2: Convert to fraction form
   23,191.83/32,004.72 = 13,120.07/x
3. Step 3: Cross multiply
   23,191.83x = 32,004.72 × 13,120.07
4. Step 4: Simplify right side
   23,191.83x = 419,904,006.71
5. Step 5: Solve for x
   x = 419,904,006.71/23,191.83
6. Step 6: Final answer
   x = 18,105.69