Finding the Fourth Proportional to 123,434.47, 170,338.30 and 69,719.32

Step by Step Solution

1. Step 1: Write the proportion equation
   123,434.47 : 170,338.30 = 69,719.32 : x
2. Step 2: Convert to fraction form
   123,434.47/170,338.30 = 69,719.32/x
3. Step 3: Cross multiply
   123,434.47x = 170,338.30 × 69,719.32
4. Step 4: Simplify right side
   123,434.47x = 11,875,870,445.96
5. Step 5: Solve for x
   x = 11,875,870,445.96/123,434.47
6. Step 6: Final answer
   x = 96,211.95