Finding the Fourth Proportional to 23,543.98, 32,490.54 and 12,788.75

Step by Step Solution

1. Step 1: Write the proportion equation
   23,543.98 : 32,490.54 = 12,788.75 : x
2. Step 2: Convert to fraction form
   23,543.98/32,490.54 = 12,788.75/x
3. Step 3: Cross multiply
   23,543.98x = 32,490.54 × 12,788.75
4. Step 4: Simplify right side
   23,543.98x = 415,513,474.65
5. Step 5: Solve for x
   x = 415,513,474.65/23,543.98
6. Step 6: Final answer
   x = 17,648.40