Finding the Fourth Proportional to 85,910.10, 128,897.55 and 41,576.10

Step by Step Solution

1. Step 1: Write the proportion equation
   85,910.10 : 128,897.55 = 41,576.10 : x
2. Step 2: Convert to fraction form
   85,910.10/128,897.55 = 41,576.10/x
3. Step 3: Cross multiply
   85,910.10x = 128,897.55 × 41,576.10
4. Step 4: Simplify right side
   85,910.10x = 5,359,057,428.56
5. Step 5: Solve for x
   x = 5,359,057,428.56/85,910.10
6. Step 6: Final answer
   x = 62,379.83