Finding the Fourth Proportional to 23,279.79, 32,126.28 and 12,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,279.79 : 32,126.28 = 12,669.50 : x
2. Step 2: Convert to fraction form
   23,279.79/32,126.28 = 12,669.50/x
3. Step 3: Cross multiply
   23,279.79x = 32,126.28 × 12,669.50
4. Step 4: Simplify right side
   23,279.79x = 407,023,904.46
5. Step 5: Solve for x
   x = 407,023,904.46/23,279.79
6. Step 6: Final answer
   x = 17,484.00