Finding the Fourth Proportional to 82,412.40, 113,686.42 and 52,145.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,412.40 : 113,686.42 = 52,145.69 : x
2. Step 2: Convert to fraction form
   82,412.40/113,686.42 = 52,145.69/x
3. Step 3: Cross multiply
   82,412.40x = 113,686.42 × 52,145.69
4. Step 4: Simplify right side
   82,412.40x = 5,928,256,814.53
5. Step 5: Solve for x
   x = 5,928,256,814.53/82,412.40
6. Step 6: Final answer
   x = 71,934.04