Finding the Fourth Proportional to 23,499.15, 32,429.33 and 12,888.75

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.15 : 32,429.33 = 12,888.75 : x
2. Step 2: Convert to fraction form
   23,499.15/32,429.33 = 12,888.75/x
3. Step 3: Cross multiply
   23,499.15x = 32,429.33 × 12,888.75
4. Step 4: Simplify right side
   23,499.15x = 417,973,527.04
5. Step 5: Solve for x
   x = 417,973,527.04/23,499.15
6. Step 6: Final answer
   x = 17,786.75