Finding the Fourth Proportional to 85,713.89, 128,570.85 and 41,332.37

Step by Step Solution

1. Step 1: Write the proportion equation
   85,713.89 : 128,570.85 = 41,332.37 : x
2. Step 2: Convert to fraction form
   85,713.89/128,570.85 = 41,332.37/x
3. Step 3: Cross multiply
   85,713.89x = 128,570.85 × 41,332.37
4. Step 4: Simplify right side
   85,713.89x = 5,314,137,300.56
5. Step 5: Solve for x
   x = 5,314,137,300.56/85,713.89
6. Step 6: Final answer
   x = 61,998.56