Finding the Fourth Proportional to 23,419.50, 32,307.58 and 13,856.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,419.50 : 32,307.58 = 13,856.78 : x
2. Step 2: Convert to fraction form
   23,419.50/32,307.58 = 13,856.78/x
3. Step 3: Cross multiply
   23,419.50x = 32,307.58 × 13,856.78
4. Step 4: Simplify right side
   23,419.50x = 447,679,028.39
5. Step 5: Solve for x
   x = 447,679,028.39/23,419.50
6. Step 6: Final answer
   x = 19,115.65