Finding the Fourth Proportional to 229,141.62, 343,667.91 and 115,259.10

Step by Step Solution

1. Step 1: Write the proportion equation
   229,141.62 : 343,667.91 = 115,259.10 : x
2. Step 2: Convert to fraction form
   229,141.62/343,667.91 = 115,259.10/x
3. Step 3: Cross multiply
   229,141.62x = 343,667.91 × 115,259.10
4. Step 4: Simplify right side
   229,141.62x = 39,610,854,005.48
5. Step 5: Solve for x
   x = 39,610,854,005.48/229,141.62
6. Step 6: Final answer
   x = 172,866.26