Finding the Fourth Proportional to 309,826.10, 464,729.55 and 88,210.10

Step by Step Solution

1. Step 1: Write the proportion equation
   309,826.10 : 464,729.55 = 88,210.10 : x
2. Step 2: Convert to fraction form
   309,826.10/464,729.55 = 88,210.10/x
3. Step 3: Cross multiply
   309,826.10x = 464,729.55 × 88,210.10
4. Step 4: Simplify right side
   309,826.10x = 40,993,840,078.46
5. Step 5: Solve for x
   x = 40,993,840,078.46/309,826.10
6. Step 6: Final answer
   x = 132,312.42