Finding the Fourth Proportional to 148,944, 205,542.72 and 81,876

Step by Step Solution

1. Step 1: Write the proportion equation
   148,944 : 205,542.72 = 81,876 : x
2. Step 2: Convert to fraction form
   148,944/205,542.72 = 81,876/x
3. Step 3: Cross multiply
   148,944x = 205,542.72 × 81,876
4. Step 4: Simplify right side
   148,944x = 16,829,015,742.72
5. Step 5: Solve for x
   x = 16,829,015,742.72/148,944
6. Step 6: Final answer
   x = 112,988.88