Finding the Fourth Proportional to 85,566.84, 128,243.25 and 41,181.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,566.84 : 128,243.25 = 41,181.72 : x
2. Step 2: Convert to fraction form
   85,566.84/128,243.25 = 41,181.72/x
3. Step 3: Cross multiply
   85,566.84x = 128,243.25 × 41,181.72
4. Step 4: Simplify right side
   85,566.84x = 5,281,277,613.39
5. Step 5: Solve for x
   x = 5,281,277,613.39/85,566.84
6. Step 6: Final answer
   x = 61,721.08