Finding the Fourth Proportional to 13,384.23, 20,105.31 and 8,701.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,384.23 : 20,105.31 = 8,701.83 : x
2. Step 2: Convert to fraction form
   13,384.23/20,105.31 = 8,701.83/x
3. Step 3: Cross multiply
   13,384.23x = 20,105.31 × 8,701.83
4. Step 4: Simplify right side
   13,384.23x = 174,952,989.72
5. Step 5: Solve for x
   x = 174,952,989.72/13,384.23
6. Step 6: Final answer
   x = 13,071.58