Finding the Fourth Proportional to 342,111.47, 472,105.68 and 191,222.51

Step by Step Solution

1. Step 1: Write the proportion equation
   342,111.47 : 472,105.68 = 191,222.51 : x
2. Step 2: Convert to fraction form
   342,111.47/472,105.68 = 191,222.51/x
3. Step 3: Cross multiply
   342,111.47x = 472,105.68 × 191,222.51
4. Step 4: Simplify right side
   342,111.47x = 90,277,232,158.74
5. Step 5: Solve for x
   x = 90,277,232,158.74/342,111.47
6. Step 6: Final answer
   x = 263,882.51