Finding the Fourth Proportional to 83,153.72, 114,752.49 and 45,428.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,153.72 : 114,752.49 = 45,428.78 : x
2. Step 2: Convert to fraction form
   83,153.72/114,752.49 = 45,428.78/x
3. Step 3: Cross multiply
   83,153.72x = 114,752.49 × 45,428.78
4. Step 4: Simplify right side
   83,153.72x = 5,213,065,622.66
5. Step 5: Solve for x
   x = 5,213,065,622.66/83,153.72
6. Step 6: Final answer
   x = 62,691.91