Finding the Fourth Proportional to 342,745, 472,987.72 and 191,842

Step by Step Solution

1. Step 1: Write the proportion equation
   342,745 : 472,987.72 = 191,842 : x
2. Step 2: Convert to fraction form
   342,745/472,987.72 = 191,842/x
3. Step 3: Cross multiply
   342,745x = 472,987.72 × 191,842
4. Step 4: Simplify right side
   342,745x = 90,738,910,180.24
5. Step 5: Solve for x
   x = 90,738,910,180.24/342,745
6. Step 6: Final answer
   x = 264,741.75