Finding the Fourth Proportional to 83,081.40, 124,662.76 and 51,483.01

Step by Step Solution

1. Step 1: Write the proportion equation
   83,081.40 : 124,662.76 = 51,483.01 : x
2. Step 2: Convert to fraction form
   83,081.40/124,662.76 = 51,483.01/x
3. Step 3: Cross multiply
   83,081.40x = 124,662.76 × 51,483.01
4. Step 4: Simplify right side
   83,081.40x = 6,418,013,459.56
5. Step 5: Solve for x
   x = 6,418,013,459.56/83,081.40
6. Step 6: Final answer
   x = 77,249.71