Finding the Fourth Proportional to 613,813.59, 847,105.33 and 372,106.35

Step by Step Solution

1. Step 1: Write the proportion equation
   613,813.59 : 847,105.33 = 372,106.35 : x
2. Step 2: Convert to fraction form
   613,813.59/847,105.33 = 372,106.35/x
3. Step 3: Cross multiply
   613,813.59x = 847,105.33 × 372,106.35
4. Step 4: Simplify right side
   613,813.59x = 315,213,275,459.88
5. Step 5: Solve for x
   x = 315,213,275,459.88/613,813.59
6. Step 6: Final answer
   x = 513,532.58