Finding the Fourth Proportional to 72,050.84, 108,076.80 and 71,947.16

Step by Step Solution

1. Step 1: Write the proportion equation
   72,050.84 : 108,076.80 = 71,947.16 : x
2. Step 2: Convert to fraction form
   72,050.84/108,076.80 = 71,947.16/x
3. Step 3: Cross multiply
   72,050.84x = 108,076.80 × 71,947.16
4. Step 4: Simplify right side
   72,050.84x = 7,775,818,821.89
5. Step 5: Solve for x
   x = 7,775,818,821.89/72,050.84
6. Step 6: Final answer
   x = 107,921.28