Finding the Fourth Proportional to 123,096.30, 169,844.71 and 77,719.69

Step by Step Solution

1. Step 1: Write the proportion equation
   123,096.30 : 169,844.71 = 77,719.69 : x
2. Step 2: Convert to fraction form
   123,096.30/169,844.71 = 77,719.69/x
3. Step 3: Cross multiply
   123,096.30x = 169,844.71 × 77,719.69
4. Step 4: Simplify right side
   123,096.30x = 13,200,278,209.34
5. Step 5: Solve for x
   x = 13,200,278,209.34/123,096.30
6. Step 6: Final answer
   x = 107,235.38