Finding the Fourth Proportional to 583,904.42, 805,788.72 and 342,138.86

Step by Step Solution

1. Step 1: Write the proportion equation
   583,904.42 : 805,788.72 = 342,138.86 : x
2. Step 2: Convert to fraction form
   583,904.42/805,788.72 = 342,138.86/x
3. Step 3: Cross multiply
   583,904.42x = 805,788.72 × 342,138.86
4. Step 4: Simplify right side
   583,904.42x = 275,691,634,061.66
5. Step 5: Solve for x
   x = 275,691,634,061.66/583,904.42
6. Step 6: Final answer
   x = 472,151.99