Finding the Fourth Proportional to 109,660.42, 164,479.56 and 74,348.47

Step by Step Solution

1. Step 1: Write the proportion equation
   109,660.42 : 164,479.56 = 74,348.47 : x
2. Step 2: Convert to fraction form
   109,660.42/164,479.56 = 74,348.47/x
3. Step 3: Cross multiply
   109,660.42x = 164,479.56 × 74,348.47
4. Step 4: Simplify right side
   109,660.42x = 12,228,803,632.27
5. Step 5: Solve for x
   x = 12,228,803,632.27/109,660.42
6. Step 6: Final answer
   x = 111,515.20