Finding the Fourth Proportional to 108,862.56, 150,222.24 and 61,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   108,862.56 : 150,222.24 = 61,123.20 : x
2. Step 2: Convert to fraction form
   108,862.56/150,222.24 = 61,123.20/x
3. Step 3: Cross multiply
   108,862.56x = 150,222.24 × 61,123.20
4. Step 4: Simplify right side
   108,862.56x = 9,182,064,019.97
5. Step 5: Solve for x
   x = 9,182,064,019.97/108,862.56
6. Step 6: Final answer
   x = 84,345.47