Finding the Fourth Proportional to 78,580.72, 108,443.73 and 48,383.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,580.72 : 108,443.73 = 48,383.46 : x
2. Step 2: Convert to fraction form
   78,580.72/108,443.73 = 48,383.46/x
3. Step 3: Cross multiply
   78,580.72x = 108,443.73 × 48,383.46
4. Step 4: Simplify right side
   78,580.72x = 5,246,882,722.56
5. Step 5: Solve for x
   x = 5,246,882,722.56/78,580.72
6. Step 6: Final answer
   x = 66,770.62