Finding the Fourth Proportional to 83,187.72, 114,803.21 and 49,216.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,187.72 : 114,803.21 = 49,216.10 : x
2. Step 2: Convert to fraction form
   83,187.72/114,803.21 = 49,216.10/x
3. Step 3: Cross multiply
   83,187.72x = 114,803.21 × 49,216.10
4. Step 4: Simplify right side
   83,187.72x = 5,650,165,812.71
5. Step 5: Solve for x
   x = 5,650,165,812.71/83,187.72
6. Step 6: Final answer
   x = 67,920.67