Finding the Fourth Proportional to 85,506.59, 128,287.55 and 41,127.55

Step by Step Solution

1. Step 1: Write the proportion equation
   85,506.59 : 128,287.55 = 41,127.55 : x
2. Step 2: Convert to fraction form
   85,506.59/128,287.55 = 41,127.55/x
3. Step 3: Cross multiply
   85,506.59x = 128,287.55 × 41,127.55
4. Step 4: Simplify right side
   85,506.59x = 5,276,152,177.76
5. Step 5: Solve for x
   x = 5,276,152,177.76/85,506.59
6. Step 6: Final answer
   x = 61,704.63