Finding the Fourth Proportional to 78,582.34, 108,570.54 and 54,815.12

Step by Step Solution

1. Step 1: Write the proportion equation
   78,582.34 : 108,570.54 = 54,815.12 : x
2. Step 2: Convert to fraction form
   78,582.34/108,570.54 = 54,815.12/x
3. Step 3: Cross multiply
   78,582.34x = 108,570.54 × 54,815.12
4. Step 4: Simplify right side
   78,582.34x = 5,951,307,178.56
5. Step 5: Solve for x
   x = 5,951,307,178.56/78,582.34
6. Step 6: Final answer
   x = 75,733.39