Finding the Fourth Proportional to 83,172.72, 114,778.72 and 45,447.76

Step by Step Solution

1. Step 1: Write the proportion equation
   83,172.72 : 114,778.72 = 45,447.76 : x
2. Step 2: Convert to fraction form
   83,172.72/114,778.72 = 45,447.76/x
3. Step 3: Cross multiply
   83,172.72x = 114,778.72 × 45,447.76
4. Step 4: Simplify right side
   83,172.72x = 5,216,435,719.67
5. Step 5: Solve for x
   x = 5,216,435,719.67/83,172.72
6. Step 6: Final answer
   x = 62,718.11