Finding the Fourth Proportional to 381,468.69, 526,522.37 and 220,417.29

Step by Step Solution

1. Step 1: Write the proportion equation
   381,468.69 : 526,522.37 = 220,417.29 : x
2. Step 2: Convert to fraction form
   381,468.69/526,522.37 = 220,417.29/x
3. Step 3: Cross multiply
   381,468.69x = 526,522.37 × 220,417.29
4. Step 4: Simplify right side
   381,468.69x = 116,054,632,817.69
5. Step 5: Solve for x
   x = 116,054,632,817.69/381,468.69
6. Step 6: Final answer
   x = 304,231.08