Finding the Fourth Proportional to 23,500.26, 32,430.15 and 12,889.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,500.26 : 32,430.15 = 12,889.89 : x
2. Step 2: Convert to fraction form
   23,500.26/32,430.15 = 12,889.89/x
3. Step 3: Cross multiply
   23,500.26x = 32,430.15 × 12,889.89
4. Step 4: Simplify right side
   23,500.26x = 418,021,066.18
5. Step 5: Solve for x
   x = 418,021,066.18/23,500.26
6. Step 6: Final answer
   x = 17,787.93