Finding the Fourth Proportional to 123,268.64, 185,018.52 and 64,146.20

Step by Step Solution

1. Step 1: Write the proportion equation
   123,268.64 : 185,018.52 = 64,146.20 : x
2. Step 2: Convert to fraction form
   123,268.64/185,018.52 = 64,146.20/x
3. Step 3: Cross multiply
   123,268.64x = 185,018.52 × 64,146.20
4. Step 4: Simplify right side
   123,268.64x = 11,868,234,987.62
5. Step 5: Solve for x
   x = 11,868,234,987.62/123,268.64
6. Step 6: Final answer
   x = 96,279.43