Finding the Fourth Proportional to 107,658, 161,519.88 and 55,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,658 : 161,519.88 = 55,104.72 : x
2. Step 2: Convert to fraction form
   107,658/161,519.88 = 55,104.72/x
3. Step 3: Cross multiply
   107,658x = 161,519.88 × 55,104.72
4. Step 4: Simplify right side
   107,658x = 8,900,507,761.83
5. Step 5: Solve for x
   x = 8,900,507,761.83/107,658
6. Step 6: Final answer
   x = 82,673.91