Finding the Fourth Proportional to 84,801.89, 127,205.54 and 42,658.94

Step by Step Solution

1. Step 1: Write the proportion equation
   84,801.89 : 127,205.54 = 42,658.94 : x
2. Step 2: Convert to fraction form
   84,801.89/127,205.54 = 42,658.94/x
3. Step 3: Cross multiply
   84,801.89x = 127,205.54 × 42,658.94
4. Step 4: Simplify right side
   84,801.89x = 5,426,453,763.22
5. Step 5: Solve for x
   x = 5,426,453,763.22/84,801.89
6. Step 6: Final answer
   x = 63,989.77