Finding the Fourth Proportional to 23,499, 32,427.06 and 12,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499 : 32,427.06 = 12,886.50 : x
2. Step 2: Convert to fraction form
   23,499/32,427.06 = 12,886.50/x
3. Step 3: Cross multiply
   23,499x = 32,427.06 × 12,886.50
4. Step 4: Simplify right side
   23,499x = 417,871,308.69
5. Step 5: Solve for x
   x = 417,871,308.69/23,499
6. Step 6: Final answer
   x = 17,782.51