Finding the Fourth Proportional to 109,587.72, 151,222.44 and 67,140.48

Step by Step Solution

1. Step 1: Write the proportion equation
   109,587.72 : 151,222.44 = 67,140.48 : x
2. Step 2: Convert to fraction form
   109,587.72/151,222.44 = 67,140.48/x
3. Step 3: Cross multiply
   109,587.72x = 151,222.44 × 67,140.48
4. Step 4: Simplify right side
   109,587.72x = 10,153,147,208.37
5. Step 5: Solve for x
   x = 10,153,147,208.37/109,587.72
6. Step 6: Final answer
   x = 92,648.59