Finding the Fourth Proportional to 230,115.10, 345,196.20 and 88,079.71

Step by Step Solution

1. Step 1: Write the proportion equation
   230,115.10 : 345,196.20 = 88,079.71 : x
2. Step 2: Convert to fraction form
   230,115.10/345,196.20 = 88,079.71/x
3. Step 3: Cross multiply
   230,115.10x = 345,196.20 × 88,079.71
4. Step 4: Simplify right side
   230,115.10x = 30,404,781,189.10
5. Step 5: Solve for x
   x = 30,404,781,189.10/230,115.10
6. Step 6: Final answer
   x = 132,128.58