Finding the Fourth Proportional to 570,147.30, 855,111.60 and 170,801.10

Step by Step Solution

1. Step 1: Write the proportion equation
   570,147.30 : 855,111.60 = 170,801.10 : x
2. Step 2: Convert to fraction form
   570,147.30/855,111.60 = 170,801.10/x
3. Step 3: Cross multiply
   570,147.30x = 855,111.60 × 170,801.10
4. Step 4: Simplify right side
   570,147.30x = 146,054,001,902.76
5. Step 5: Solve for x
   x = 146,054,001,902.76/570,147.30
6. Step 6: Final answer
   x = 256,168.89