Finding the Fourth Proportional to 342,122, 472,142.94 and 191,219

Step by Step Solution

1. Step 1: Write the proportion equation
   342,122 : 472,142.94 = 191,219 : x
2. Step 2: Convert to fraction form
   342,122/472,142.94 = 191,219/x
3. Step 3: Cross multiply
   342,122x = 472,142.94 × 191,219
4. Step 4: Simplify right side
   342,122x = 90,282,700,843.86
5. Step 5: Solve for x
   x = 90,282,700,843.86/342,122
6. Step 6: Final answer
   x = 263,890.37