Finding the Fourth Proportional to 72,078.96, 108,118.90 and 47,276.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,078.96 : 108,118.90 = 47,276.56 : x
2. Step 2: Convert to fraction form
   72,078.96/108,118.90 = 47,276.56/x
3. Step 3: Cross multiply
   72,078.96x = 108,118.90 × 47,276.56
4. Step 4: Simplify right side
   72,078.96x = 5,111,489,857.23
5. Step 5: Solve for x
   x = 5,111,489,857.23/72,078.96
6. Step 6: Final answer
   x = 70,915.14