Finding the Fourth Proportional to 342,111.97, 472,106.37 and 191,223.01

Step by Step Solution

1. Step 1: Write the proportion equation
   342,111.97 : 472,106.37 = 191,223.01 : x
2. Step 2: Convert to fraction form
   342,111.97/472,106.37 = 191,223.01/x
3. Step 3: Cross multiply
   342,111.97x = 472,106.37 × 191,223.01
4. Step 4: Simplify right side
   342,111.97x = 90,277,600,155.46
5. Step 5: Solve for x
   x = 90,277,600,155.46/342,111.97
6. Step 6: Final answer
   x = 263,883.20