Finding the Fourth Proportional to 72,882.96, 109,209.30 and 55,029.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,882.96 : 109,209.30 = 55,029.12 : x
2. Step 2: Convert to fraction form
   72,882.96/109,209.30 = 55,029.12/x
3. Step 3: Cross multiply
   72,882.96x = 109,209.30 × 55,029.12
4. Step 4: Simplify right side
   72,882.96x = 6,009,691,674.82
5. Step 5: Solve for x
   x = 6,009,691,674.82/72,882.96
6. Step 6: Final answer
   x = 82,456.75