Finding the Fourth Proportional to 123,063.96, 169,829.04 and 72,106.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,063.96 : 169,829.04 = 72,106.80 : x
2. Step 2: Convert to fraction form
   123,063.96/169,829.04 = 72,106.80/x
3. Step 3: Cross multiply
   123,063.96x = 169,829.04 × 72,106.80
4. Step 4: Simplify right side
   123,063.96x = 12,245,828,621.47
5. Step 5: Solve for x
   x = 12,245,828,621.47/123,063.96
6. Step 6: Final answer
   x = 99,507.84