Finding the Fourth Proportional to 123,603.89, 170,576.97 and 69,887.76

Step by Step Solution

1. Step 1: Write the proportion equation
   123,603.89 : 170,576.97 = 69,887.76 : x
2. Step 2: Convert to fraction form
   123,603.89/170,576.97 = 69,887.76/x
3. Step 3: Cross multiply
   123,603.89x = 170,576.97 × 69,887.76
4. Step 4: Simplify right side
   123,603.89x = 11,921,242,340.89
5. Step 5: Solve for x
   x = 11,921,242,340.89/123,603.89
6. Step 6: Final answer
   x = 96,447.15