Finding the Fourth Proportional to 83,137.68, 124,662.69 and 56,849.94

Step by Step Solution

1. Step 1: Write the proportion equation
   83,137.68 : 124,662.69 = 56,849.94 : x
2. Step 2: Convert to fraction form
   83,137.68/124,662.69 = 56,849.94/x
3. Step 3: Cross multiply
   83,137.68x = 124,662.69 × 56,849.94
4. Step 4: Simplify right side
   83,137.68x = 7,087,066,446.74
5. Step 5: Solve for x
   x = 7,087,066,446.74/83,137.68
6. Step 6: Final answer
   x = 85,244.94