Finding the Fourth Proportional to 82,123.79, 113,313.91 and 47,191.69

Step by Step Solution

1. Step 1: Write the proportion equation
   82,123.79 : 113,313.91 = 47,191.69 : x
2. Step 2: Convert to fraction form
   82,123.79/113,313.91 = 47,191.69/x
3. Step 3: Cross multiply
   82,123.79x = 113,313.91 × 47,191.69
4. Step 4: Simplify right side
   82,123.79x = 5,347,474,839.59
5. Step 5: Solve for x
   x = 5,347,474,839.59/82,123.79
6. Step 6: Final answer
   x = 65,114.81