Finding the Fourth Proportional to 123,298.56, 169,997.07 and 100,614.48

Step by Step Solution

1. Step 1: Write the proportion equation
   123,298.56 : 169,997.07 = 100,614.48 : x
2. Step 2: Convert to fraction form
   123,298.56/169,997.07 = 100,614.48/x
3. Step 3: Cross multiply
   123,298.56x = 169,997.07 × 100,614.48
4. Step 4: Simplify right side
   123,298.56x = 17,104,166,799.57
5. Step 5: Solve for x
   x = 17,104,166,799.57/123,298.56
6. Step 6: Final answer
   x = 138,721.55