Finding the Fourth Proportional to 109,280.78, 150,806.04 and 61,538.84

Step by Step Solution

1. Step 1: Write the proportion equation
   109,280.78 : 150,806.04 = 61,538.84 : x
2. Step 2: Convert to fraction form
   109,280.78/150,806.04 = 61,538.84/x
3. Step 3: Cross multiply
   109,280.78x = 150,806.04 × 61,538.84
4. Step 4: Simplify right side
   109,280.78x = 9,280,428,766.59
5. Step 5: Solve for x
   x = 9,280,428,766.59/109,280.78
6. Step 6: Final answer
   x = 84,922.79