Finding the Fourth Proportional to 123,091.79, 169,861.73 and 69,387.93

Step by Step Solution

1. Step 1: Write the proportion equation
   123,091.79 : 169,861.73 = 69,387.93 : x
2. Step 2: Convert to fraction form
   123,091.79/169,861.73 = 69,387.93/x
3. Step 3: Cross multiply
   123,091.79x = 169,861.73 × 69,387.93
4. Step 4: Simplify right side
   123,091.79x = 11,786,354,004.39
5. Step 5: Solve for x
   x = 11,786,354,004.39/123,091.79
6. Step 6: Final answer
   x = 95,752.56