Finding the Fourth Proportional to 23,499.22, 32,430.96 and 12,890.92

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.22 : 32,430.96 = 12,890.92 : x
2. Step 2: Convert to fraction form
   23,499.22/32,430.96 = 12,890.92/x
3. Step 3: Cross multiply
   23,499.22x = 32,430.96 × 12,890.92
4. Step 4: Simplify right side
   23,499.22x = 418,064,910.88
5. Step 5: Solve for x
   x = 418,064,910.88/23,499.22
6. Step 6: Final answer
   x = 17,790.59