Finding the Fourth Proportional to 123,296.67, 169,994.50 and 100,612.62

Step by Step Solution

1. Step 1: Write the proportion equation
   123,296.67 : 169,994.50 = 100,612.62 : x
2. Step 2: Convert to fraction form
   123,296.67/169,994.50 = 100,612.62/x
3. Step 3: Cross multiply
   123,296.67x = 169,994.50 × 100,612.62
4. Step 4: Simplify right side
   123,296.67x = 17,103,591,779.06
5. Step 5: Solve for x
   x = 17,103,591,779.06/123,296.67
6. Step 6: Final answer
   x = 138,719.01