Finding the Fourth Proportional to 82,130.28, 113,341.86 and 50,316.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,130.28 : 113,341.86 = 50,316.72 : x
2. Step 2: Convert to fraction form
   82,130.28/113,341.86 = 50,316.72/x
3. Step 3: Cross multiply
   82,130.28x = 113,341.86 × 50,316.72
4. Step 4: Simplify right side
   82,130.28x = 5,702,990,633.90
5. Step 5: Solve for x
   x = 5,702,990,633.90/82,130.28
6. Step 6: Final answer
   x = 69,438.34