Finding the Fourth Proportional to 23,886.78, 32,964.78 and 13,276.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,886.78 : 32,964.78 = 13,276.50 : x
2. Step 2: Convert to fraction form
   23,886.78/32,964.78 = 13,276.50/x
3. Step 3: Cross multiply
   23,886.78x = 32,964.78 × 13,276.50
4. Step 4: Simplify right side
   23,886.78x = 437,656,901.67
5. Step 5: Solve for x
   x = 437,656,901.67/23,886.78
6. Step 6: Final answer
   x = 18,322.14