Finding the Fourth Proportional to 342,111.72, 472,106.02 and 191,222.76

Step by Step Solution

1. Step 1: Write the proportion equation
   342,111.72 : 472,106.02 = 191,222.76 : x
2. Step 2: Convert to fraction form
   342,111.72/472,106.02 = 191,222.76/x
3. Step 3: Cross multiply
   342,111.72x = 472,106.02 × 191,222.76
4. Step 4: Simplify right side
   342,111.72x = 90,277,416,157.02
5. Step 5: Solve for x
   x = 90,277,416,157.02/342,111.72
6. Step 6: Final answer
   x = 263,882.85