Finding the Fourth Proportional to 381,503.56, 526,499.52 and 211,737.69

Step by Step Solution

1. Step 1: Write the proportion equation
   381,503.56 : 526,499.52 = 211,737.69 : x
2. Step 2: Convert to fraction form
   381,503.56/526,499.52 = 211,737.69/x
3. Step 3: Cross multiply
   381,503.56x = 526,499.52 × 211,737.69
4. Step 4: Simplify right side
   381,503.56x = 111,479,792,150.91
5. Step 5: Solve for x
   x = 111,479,792,150.91/381,503.56
6. Step 6: Final answer
   x = 292,211.67