Finding the Fourth Proportional to 614,538.72, 848,067.36 and 342,624

Step by Step Solution

1. Step 1: Write the proportion equation
   614,538.72 : 848,067.36 = 342,624 : x
2. Step 2: Convert to fraction form
   614,538.72/848,067.36 = 342,624/x
3. Step 3: Cross multiply
   614,538.72x = 848,067.36 × 342,624
4. Step 4: Simplify right side
   614,538.72x = 290,568,231,152.64
5. Step 5: Solve for x
   x = 290,568,231,152.64/614,538.72
6. Step 6: Final answer
   x = 472,823.31