Finding the Fourth Proportional to 39,491.22, 59,239.89 and 13,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   39,491.22 : 59,239.89 = 13,196.06 : x
2. Step 2: Convert to fraction form
   39,491.22/59,239.89 = 13,196.06/x
3. Step 3: Cross multiply
   39,491.22x = 59,239.89 × 13,196.06
4. Step 4: Simplify right side
   39,491.22x = 781,733,142.83
5. Step 5: Solve for x
   x = 781,733,142.83/39,491.22
6. Step 6: Final answer
   x = 19,795.11