Finding the Fourth Proportional to 123,225.12, 170,094.24 and 72,924

Step by Step Solution

1. Step 1: Write the proportion equation
   123,225.12 : 170,094.24 = 72,924 : x
2. Step 2: Convert to fraction form
   123,225.12/170,094.24 = 72,924/x
3. Step 3: Cross multiply
   123,225.12x = 170,094.24 × 72,924
4. Step 4: Simplify right side
   123,225.12x = 12,403,952,357.76
5. Step 5: Solve for x
   x = 12,403,952,357.76/123,225.12
6. Step 6: Final answer
   x = 100,660.91