Finding the Fourth Proportional to 111,354, 167,040.72 and 28,248

Step by Step Solution

1. Step 1: Write the proportion equation
   111,354 : 167,040.72 = 28,248 : x
2. Step 2: Convert to fraction form
   111,354/167,040.72 = 28,248/x
3. Step 3: Cross multiply
   111,354x = 167,040.72 × 28,248
4. Step 4: Simplify right side
   111,354x = 4,718,566,258.56
5. Step 5: Solve for x
   x = 4,718,566,258.56/111,354
6. Step 6: Final answer
   x = 42,374.47