Finding the Fourth Proportional to 111,357, 167,045.22 and 28,251

Step by Step Solution

1. Step 1: Write the proportion equation
   111,357 : 167,045.22 = 28,251 : x
2. Step 2: Convert to fraction form
   111,357/167,045.22 = 28,251/x
3. Step 3: Cross multiply
   111,357x = 167,045.22 × 28,251
4. Step 4: Simplify right side
   111,357x = 4,719,194,510.22
5. Step 5: Solve for x
   x = 4,719,194,510.22/111,357
6. Step 6: Final answer
   x = 42,378.97