Finding the Fourth Proportional to 81,946.50, 113,084.31 and 45,647.70

Step by Step Solution

1. Step 1: Write the proportion equation
   81,946.50 : 113,084.31 = 45,647.70 : x
2. Step 2: Convert to fraction form
   81,946.50/113,084.31 = 45,647.70/x
3. Step 3: Cross multiply
   81,946.50x = 113,084.31 × 45,647.70
4. Step 4: Simplify right side
   81,946.50x = 5,162,038,657.59
5. Step 5: Solve for x
   x = 5,162,038,657.59/81,946.50
6. Step 6: Final answer
   x = 62,992.79