Finding the Fourth Proportional to 229,807.10, 317,097.16 and 139,147.58

Step by Step Solution

1. Step 1: Write the proportion equation
   229,807.10 : 317,097.16 = 139,147.58 : x
2. Step 2: Convert to fraction form
   229,807.10/317,097.16 = 139,147.58/x
3. Step 3: Cross multiply
   229,807.10x = 317,097.16 × 139,147.58
4. Step 4: Simplify right side
   229,807.10x = 44,123,300,505.52
5. Step 5: Solve for x
   x = 44,123,300,505.52/229,807.10
6. Step 6: Final answer
   x = 192,001.47