Finding the Fourth Proportional to 85,329.25, 127,822.52 and 42,505.70

Step by Step Solution

1. Step 1: Write the proportion equation
   85,329.25 : 127,822.52 = 42,505.70 : x
2. Step 2: Convert to fraction form
   85,329.25/127,822.52 = 42,505.70/x
3. Step 3: Cross multiply
   85,329.25x = 127,822.52 × 42,505.70
4. Step 4: Simplify right side
   85,329.25x = 5,433,185,155.52
5. Step 5: Solve for x
   x = 5,433,185,155.52/85,329.25
6. Step 6: Final answer
   x = 63,673.19