Finding the Fourth Proportional to 248,844, 343,404.72 and 159,420

Step by Step Solution

1. Step 1: Write the proportion equation
   248,844 : 343,404.72 = 159,420 : x
2. Step 2: Convert to fraction form
   248,844/343,404.72 = 159,420/x
3. Step 3: Cross multiply
   248,844x = 343,404.72 × 159,420
4. Step 4: Simplify right side
   248,844x = 54,745,580,462.40
5. Step 5: Solve for x
   x = 54,745,580,462.40/248,844
6. Step 6: Final answer
   x = 219,999.60