Finding the Fourth Proportional to 82,301.72, 113,572.62 and 51,690.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82,301.72 : 113,572.62 = 51,690.62 : x
2. Step 2: Convert to fraction form
   82,301.72/113,572.62 = 51,690.62/x
3. Step 3: Cross multiply
   82,301.72x = 113,572.62 × 51,690.62
4. Step 4: Simplify right side
   82,301.72x = 5,870,638,574.96
5. Step 5: Solve for x
   x = 5,870,638,574.96/82,301.72
6. Step 6: Final answer
   x = 71,330.70