Finding the Fourth Proportional to 54,868.06, 81,822.50 and 48,820.06

Step by Step Solution

1. Step 1: Write the proportion equation
   54,868.06 : 81,822.50 = 48,820.06 : x
2. Step 2: Convert to fraction form
   54,868.06/81,822.50 = 48,820.06/x
3. Step 3: Cross multiply
   54,868.06x = 81,822.50 × 48,820.06
4. Step 4: Simplify right side
   54,868.06x = 3,994,579,359.35
5. Step 5: Solve for x
   x = 3,994,579,359.35/54,868.06
6. Step 6: Final answer
   x = 72,803.36