Finding the Fourth Proportional to 85,799.52, 128,622.71 and 43,656.03

Step by Step Solution

1. Step 1: Write the proportion equation
   85,799.52 : 128,622.71 = 43,656.03 : x
2. Step 2: Convert to fraction form
   85,799.52/128,622.71 = 43,656.03/x
3. Step 3: Cross multiply
   85,799.52x = 128,622.71 × 43,656.03
4. Step 4: Simplify right side
   85,799.52x = 5,615,156,995.58
5. Step 5: Solve for x
   x = 5,615,156,995.58/85,799.52
6. Step 6: Final answer
   x = 65,445.09