Finding the Fourth Proportional to 371,883.55, 557,498.16 and 147,401.55

Step by Step Solution

1. Step 1: Write the proportion equation
   371,883.55 : 557,498.16 = 147,401.55 : x
2. Step 2: Convert to fraction form
   371,883.55/557,498.16 = 147,401.55/x
3. Step 3: Cross multiply
   371,883.55x = 557,498.16 × 147,401.55
4. Step 4: Simplify right side
   371,883.55x = 82,176,092,906.15
5. Step 5: Solve for x
   x = 82,176,092,906.15/371,883.55
6. Step 6: Final answer
   x = 220,972.65