Finding the Fourth Proportional to 381,826, 526,920.06 and 212,061.52

Step by Step Solution

1. Step 1: Write the proportion equation
   381,826 : 526,920.06 = 212,061.52 : x
2. Step 2: Convert to fraction form
   381,826/526,920.06 = 212,061.52/x
3. Step 3: Cross multiply
   381,826x = 526,920.06 × 212,061.52
4. Step 4: Simplify right side
   381,826x = 111,739,468,842.09
5. Step 5: Solve for x
   x = 111,739,468,842.09/381,826
6. Step 6: Final answer
   x = 292,645.00