Finding the Fourth Proportional to 81,610.74, 122,153.67 and 42,114.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,610.74 : 122,153.67 = 42,114.06 : x
2. Step 2: Convert to fraction form
   81,610.74/122,153.67 = 42,114.06/x
3. Step 3: Cross multiply
   81,610.74x = 122,153.67 × 42,114.06
4. Step 4: Simplify right side
   81,610.74x = 5,144,386,987.60
5. Step 5: Solve for x
   x = 5,144,386,987.60/81,610.74
6. Step 6: Final answer
   x = 63,035.66