Finding the Fourth Proportional to 85,755.83, 128,633.79 and 35,808.71

Step by Step Solution

1. Step 1: Write the proportion equation
   85,755.83 : 128,633.79 = 35,808.71 : x
2. Step 2: Convert to fraction form
   85,755.83/128,633.79 = 35,808.71/x
3. Step 3: Cross multiply
   85,755.83x = 128,633.79 × 35,808.71
4. Step 4: Simplify right side
   85,755.83x = 4,606,209,439.14
5. Step 5: Solve for x
   x = 4,606,209,439.14/85,755.83
6. Step 6: Final answer
   x = 53,713.08