Finding the Fourth Proportional to 81,997.98, 113,151.51 and 48,457.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,997.98 : 113,151.51 = 48,457.50 : x
2. Step 2: Convert to fraction form
   81,997.98/113,151.51 = 48,457.50/x
3. Step 3: Cross multiply
   81,997.98x = 113,151.51 × 48,457.50
4. Step 4: Simplify right side
   81,997.98x = 5,483,039,295.83
5. Step 5: Solve for x
   x = 5,483,039,295.83/81,997.98
6. Step 6: Final answer
   x = 66,867.98