Finding the Fourth Proportional to 431,111.75, 646,700.42 and 146,714.27

Step by Step Solution

1. Step 1: Write the proportion equation
   431,111.75 : 646,700.42 = 146,714.27 : x
2. Step 2: Convert to fraction form
   431,111.75/646,700.42 = 146,714.27/x
3. Step 3: Cross multiply
   431,111.75x = 646,700.42 × 146,714.27
4. Step 4: Simplify right side
   431,111.75x = 94,880,177,162.28
5. Step 5: Solve for x
   x = 94,880,177,162.28/431,111.75
6. Step 6: Final answer
   x = 220,082.56