Finding the Fourth Proportional to 82,128.56, 113,341.26 and 46,317.81

Step by Step Solution

1. Step 1: Write the proportion equation
   82,128.56 : 113,341.26 = 46,317.81 : x
2. Step 2: Convert to fraction form
   82,128.56/113,341.26 = 46,317.81/x
3. Step 3: Cross multiply
   82,128.56x = 113,341.26 × 46,317.81
4. Step 4: Simplify right side
   82,128.56x = 5,249,718,945.84
5. Step 5: Solve for x
   x = 5,249,718,945.84/82,128.56
6. Step 6: Final answer
   x = 63,920.75