Finding the Fourth Proportional to 89,899.83, 124,108.41 and 65,673.60

Step by Step Solution

1. Step 1: Write the proportion equation
   89,899.83 : 124,108.41 = 65,673.60 : x
2. Step 2: Convert to fraction form
   89,899.83/124,108.41 = 65,673.60/x
3. Step 3: Cross multiply
   89,899.83x = 124,108.41 × 65,673.60
4. Step 4: Simplify right side
   89,899.83x = 8,150,646,074.98
5. Step 5: Solve for x
   x = 8,150,646,074.98/89,899.83
6. Step 6: Final answer
   x = 90,663.64