Finding the Fourth Proportional to 78,579.98, 108,478.82 and 52,729.28

Step by Step Solution

1. Step 1: Write the proportion equation
   78,579.98 : 108,478.82 = 52,729.28 : x
2. Step 2: Convert to fraction form
   78,579.98/108,478.82 = 52,729.28/x
3. Step 3: Cross multiply
   78,579.98x = 108,478.82 × 52,729.28
4. Step 4: Simplify right side
   78,579.98x = 5,720,009,267.81
5. Step 5: Solve for x
   x = 5,720,009,267.81/78,579.98
6. Step 6: Final answer
   x = 72,792.20