Finding the Fourth Proportional to 123,090.09, 169,873.65 and 69,380.16

Step by Step Solution

1. Step 1: Write the proportion equation
   123,090.09 : 169,873.65 = 69,380.16 : x
2. Step 2: Convert to fraction form
   123,090.09/169,873.65 = 69,380.16/x
3. Step 3: Cross multiply
   123,090.09x = 169,873.65 × 69,380.16
4. Step 4: Simplify right side
   123,090.09x = 11,785,861,016.78
5. Step 5: Solve for x
   x = 11,785,861,016.78/123,090.09
6. Step 6: Final answer
   x = 95,749.88