Finding the Fourth Proportional to 81,588.24, 122,283.95 and 42,123.83

Step by Step Solution

1. Step 1: Write the proportion equation
   81,588.24 : 122,283.95 = 42,123.83 : x
2. Step 2: Convert to fraction form
   81,588.24/122,283.95 = 42,123.83/x
3. Step 3: Cross multiply
   81,588.24x = 122,283.95 × 42,123.83
4. Step 4: Simplify right side
   81,588.24x = 5,151,067,499.49
5. Step 5: Solve for x
   x = 5,151,067,499.49/81,588.24
6. Step 6: Final answer
   x = 63,134.93