Finding the Fourth Proportional to 82,128.63, 113,337.23 and 46,318.43

Step by Step Solution

1. Step 1: Write the proportion equation
   82,128.63 : 113,337.23 = 46,318.43 : x
2. Step 2: Convert to fraction form
   82,128.63/113,337.23 = 46,318.43/x
3. Step 3: Cross multiply
   82,128.63x = 113,337.23 × 46,318.43
4. Step 4: Simplify right side
   82,128.63x = 5,249,602,605.90
5. Step 5: Solve for x
   x = 5,249,602,605.90/82,128.63
6. Step 6: Final answer
   x = 63,919.27