Finding the Fourth Proportional to 78,503.41, 108,279.82 and 51,637.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,503.41 : 108,279.82 = 51,637.33 : x
2. Step 2: Convert to fraction form
   78,503.41/108,279.82 = 51,637.33/x
3. Step 3: Cross multiply
   78,503.41x = 108,279.82 × 51,637.33
4. Step 4: Simplify right side
   78,503.41x = 5,591,280,797.68
5. Step 5: Solve for x
   x = 5,591,280,797.68/78,503.41
6. Step 6: Final answer
   x = 71,223.41