Finding the Fourth Proportional to 55,997.72, 83,994.48 and 13,877.94

Step by Step Solution

1. Step 1: Write the proportion equation
   55,997.72 : 83,994.48 = 13,877.94 : x
2. Step 2: Convert to fraction form
   55,997.72/83,994.48 = 13,877.94/x
3. Step 3: Cross multiply
   55,997.72x = 83,994.48 × 13,877.94
4. Step 4: Simplify right side
   55,997.72x = 1,165,670,353.77
5. Step 5: Solve for x
   x = 1,165,670,353.77/55,997.72
6. Step 6: Final answer
   x = 20,816.39