Finding the Fourth Proportional to 109,268.01, 150,806.48 and 78,742.35

Step by Step Solution

1. Step 1: Write the proportion equation
   109,268.01 : 150,806.48 = 78,742.35 : x
2. Step 2: Convert to fraction form
   109,268.01/150,806.48 = 78,742.35/x
3. Step 3: Cross multiply
   109,268.01x = 150,806.48 × 78,742.35
4. Step 4: Simplify right side
   109,268.01x = 11,874,856,236.72
5. Step 5: Solve for x
   x = 11,874,856,236.72/109,268.01
6. Step 6: Final answer
   x = 108,676.42