Finding the Fourth Proportional to 81,883.42, 113,012.76 and 47,423.18

Step by Step Solution

1. Step 1: Write the proportion equation
   81,883.42 : 113,012.76 = 47,423.18 : x
2. Step 2: Convert to fraction form
   81,883.42/113,012.76 = 47,423.18/x
3. Step 3: Cross multiply
   81,883.42x = 113,012.76 × 47,423.18
4. Step 4: Simplify right side
   81,883.42x = 5,359,424,459.78
5. Step 5: Solve for x
   x = 5,359,424,459.78/81,883.42
6. Step 6: Final answer
   x = 65,451.89