Finding the Fourth Proportional to 85,132.35, 127,777.23 and 43,042.05

Step by Step Solution

1. Step 1: Write the proportion equation
   85,132.35 : 127,777.23 = 43,042.05 : x
2. Step 2: Convert to fraction form
   85,132.35/127,777.23 = 43,042.05/x
3. Step 3: Cross multiply
   85,132.35x = 127,777.23 × 43,042.05
4. Step 4: Simplify right side
   85,132.35x = 5,499,793,922.52
5. Step 5: Solve for x
   x = 5,499,793,922.52/85,132.35
6. Step 6: Final answer
   x = 64,602.87