Finding the Fourth Proportional to 123,372.72, 170,253.50 and 69,675.39

Step by Step Solution

1. Step 1: Write the proportion equation
   123,372.72 : 170,253.50 = 69,675.39 : x
2. Step 2: Convert to fraction form
   123,372.72/170,253.50 = 69,675.39/x
3. Step 3: Cross multiply
   123,372.72x = 170,253.50 × 69,675.39
4. Step 4: Simplify right side
   123,372.72x = 11,862,478,662.99
5. Step 5: Solve for x
   x = 11,862,478,662.99/123,372.72
6. Step 6: Final answer
   x = 96,151.55