Finding the Fourth Proportional to 68,234.10, 102,205.35 and 56,570.10

Step by Step Solution

1. Step 1: Write the proportion equation
   68,234.10 : 102,205.35 = 56,570.10 : x
2. Step 2: Convert to fraction form
   68,234.10/102,205.35 = 56,570.10/x
3. Step 3: Cross multiply
   68,234.10x = 102,205.35 × 56,570.10
4. Step 4: Simplify right side
   68,234.10x = 5,781,766,870.04
5. Step 5: Solve for x
   x = 5,781,766,870.04/68,234.10
6. Step 6: Final answer
   x = 84,734.27