Finding the Fourth Proportional to 23,430.52, 32,334.11 and 12,820.15

Step by Step Solution

1. Step 1: Write the proportion equation
   23,430.52 : 32,334.11 = 12,820.15 : x
2. Step 2: Convert to fraction form
   23,430.52/32,334.11 = 12,820.15/x
3. Step 3: Cross multiply
   23,430.52x = 32,334.11 × 12,820.15
4. Step 4: Simplify right side
   23,430.52x = 414,528,109.83
5. Step 5: Solve for x
   x = 414,528,109.83/23,430.52
6. Step 6: Final answer
   x = 17,691.80