Finding the Fourth Proportional to 85,766.34, 128,605.62 and 35,832.81

Step by Step Solution

1. Step 1: Write the proportion equation
   85,766.34 : 128,605.62 = 35,832.81 : x
2. Step 2: Convert to fraction form
   85,766.34/128,605.62 = 35,832.81/x
3. Step 3: Cross multiply
   85,766.34x = 128,605.62 × 35,832.81
4. Step 4: Simplify right side
   85,766.34x = 4,608,300,746.39
5. Step 5: Solve for x
   x = 4,608,300,746.39/85,766.34
6. Step 6: Final answer
   x = 53,730.88