Finding the Fourth Proportional to 81,016.74, 111,742.70 and 59,499.84

Step by Step Solution

1. Step 1: Write the proportion equation
   81,016.74 : 111,742.70 = 59,499.84 : x
2. Step 2: Convert to fraction form
   81,016.74/111,742.70 = 59,499.84/x
3. Step 3: Cross multiply
   81,016.74x = 111,742.70 × 59,499.84
4. Step 4: Simplify right side
   81,016.74x = 6,648,672,771.17
5. Step 5: Solve for x
   x = 6,648,672,771.17/81,016.74
6. Step 6: Final answer
   x = 82,065.42