Finding the Fourth Proportional to 123,087.90, 169,856.37 and 69,384.06

Step by Step Solution

1. Step 1: Write the proportion equation
   123,087.90 : 169,856.37 = 69,384.06 : x
2. Step 2: Convert to fraction form
   123,087.90/169,856.37 = 69,384.06/x
3. Step 3: Cross multiply
   123,087.90x = 169,856.37 × 69,384.06
4. Step 4: Simplify right side
   123,087.90x = 11,785,323,795.90
5. Step 5: Solve for x
   x = 11,785,323,795.90/123,087.90
6. Step 6: Final answer
   x = 95,747.22