Finding the Fourth Proportional to 123,053.90, 169,815.18 and 72,096.80

Step by Step Solution

1. Step 1: Write the proportion equation
   123,053.90 : 169,815.18 = 72,096.80 : x
2. Step 2: Convert to fraction form
   123,053.90/169,815.18 = 72,096.80/x
3. Step 3: Cross multiply
   123,053.90x = 169,815.18 × 72,096.80
4. Step 4: Simplify right side
   123,053.90x = 12,243,131,069.42
5. Step 5: Solve for x
   x = 12,243,131,069.42/123,053.90
6. Step 6: Final answer
   x = 99,494.05