Finding the Fourth Proportional to 82,467.46, 123,738.10 and 47,407.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,467.46 : 123,738.10 = 47,407.12 : x
2. Step 2: Convert to fraction form
   82,467.46/123,738.10 = 47,407.12/x
3. Step 3: Cross multiply
   82,467.46x = 123,738.10 × 47,407.12
4. Step 4: Simplify right side
   82,467.46x = 5,866,066,099.55
5. Step 5: Solve for x
   x = 5,866,066,099.55/82,467.46
6. Step 6: Final answer
   x = 71,131.89