Finding the Fourth Proportional to 123,015.65, 169,774.13 and 75,300.53

Step by Step Solution

1. Step 1: Write the proportion equation
   123,015.65 : 169,774.13 = 75,300.53 : x
2. Step 2: Convert to fraction form
   123,015.65/169,774.13 = 75,300.53/x
3. Step 3: Cross multiply
   123,015.65x = 169,774.13 × 75,300.53
4. Step 4: Simplify right side
   123,015.65x = 12,784,081,308.67
5. Step 5: Solve for x
   x = 12,784,081,308.67/123,015.65
6. Step 6: Final answer
   x = 103,922.40