Finding the Fourth Proportional to 352,111.32, 485,279.10 and 256,466.52

Step by Step Solution

1. Step 1: Write the proportion equation
   352,111.32 : 485,279.10 = 256,466.52 : x
2. Step 2: Convert to fraction form
   352,111.32/485,279.10 = 256,466.52/x
3. Step 3: Cross multiply
   352,111.32x = 485,279.10 × 256,466.52
4. Step 4: Simplify right side
   352,111.32x = 124,457,842,005.73
5. Step 5: Solve for x
   x = 124,457,842,005.73/352,111.32
6. Step 6: Final answer
   x = 353,461.63