Finding the Fourth Proportional to 23,699.12, 32,704.63 and 13,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,699.12 : 32,704.63 = 13,088.72 : x
2. Step 2: Convert to fraction form
   23,699.12/32,704.63 = 13,088.72/x
3. Step 3: Cross multiply
   23,699.12x = 32,704.63 × 13,088.72
4. Step 4: Simplify right side
   23,699.12x = 428,061,793.81
5. Step 5: Solve for x
   x = 428,061,793.81/23,699.12
6. Step 6: Final answer
   x = 18,062.35