Finding the Fourth Proportional to 23,826.15, 32,783.54 and 19,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,826.15 : 32,783.54 = 19,561.50 : x
2. Step 2: Convert to fraction form
   23,826.15/32,783.54 = 19,561.50/x
3. Step 3: Cross multiply
   23,826.15x = 32,783.54 × 19,561.50
4. Step 4: Simplify right side
   23,826.15x = 641,295,119.90
5. Step 5: Solve for x
   x = 641,295,119.90/23,826.15
6. Step 6: Final answer
   x = 26,915.60