Finding the Fourth Proportional to 85,600.89, 128,317.86 and 35,695.25

Step by Step Solution

1. Step 1: Write the proportion equation
   85,600.89 : 128,317.86 = 35,695.25 : x
2. Step 2: Convert to fraction form
   85,600.89/128,317.86 = 35,695.25/x
3. Step 3: Cross multiply
   85,600.89x = 128,317.86 × 35,695.25
4. Step 4: Simplify right side
   85,600.89x = 4,580,337,931.77
5. Step 5: Solve for x
   x = 4,580,337,931.77/85,600.89
6. Step 6: Final answer
   x = 53,508.06