Finding the Fourth Proportional to 85,570.83, 128,301.57 and 41,109.12

Step by Step Solution

1. Step 1: Write the proportion equation
   85,570.83 : 128,301.57 = 41,109.12 : x
2. Step 2: Convert to fraction form
   85,570.83/128,301.57 = 41,109.12/x
3. Step 3: Cross multiply
   85,570.83x = 128,301.57 × 41,109.12
4. Step 4: Simplify right side
   85,570.83x = 5,274,364,637.32
5. Step 5: Solve for x
   x = 5,274,364,637.32/85,570.83
6. Step 6: Final answer
   x = 61,637.41