Finding the Fourth Proportional to 78,099.99, 117,151.43 and 28,183.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,099.99 : 117,151.43 = 28,183.83 : x
2. Step 2: Convert to fraction form
   78,099.99/117,151.43 = 28,183.83/x
3. Step 3: Cross multiply
   78,099.99x = 117,151.43 × 28,183.83
4. Step 4: Simplify right side
   78,099.99x = 3,301,775,846.46
5. Step 5: Solve for x
   x = 3,301,775,846.46/78,099.99
6. Step 6: Final answer
   x = 42,276.26