Finding the Fourth Proportional to 67,478, 101,147.88 and 28,058

Step by Step Solution

1. Step 1: Write the proportion equation
   67,478 : 101,147.88 = 28,058 : x
2. Step 2: Convert to fraction form
   67,478/101,147.88 = 28,058/x
3. Step 3: Cross multiply
   67,478x = 101,147.88 × 28,058
4. Step 4: Simplify right side
   67,478x = 2,838,007,217.04
5. Step 5: Solve for x
   x = 2,838,007,217.04/67,478
6. Step 6: Final answer
   x = 42,058.26