Finding the Fourth Proportional to 23,499.18, 32,427.36 and 12,886.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,499.18 : 32,427.36 = 12,886.56 : x
2. Step 2: Convert to fraction form
   23,499.18/32,427.36 = 12,886.56/x
3. Step 3: Cross multiply
   23,499.18x = 32,427.36 × 12,886.56
4. Step 4: Simplify right side
   23,499.18x = 417,877,120.28
5. Step 5: Solve for x
   x = 417,877,120.28/23,499.18
6. Step 6: Final answer
   x = 17,782.63