Finding the Fourth Proportional to 83,409.81, 115,133.59 and 50,704.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,409.81 : 115,133.59 = 50,704.10 : x
2. Step 2: Convert to fraction form
   83,409.81/115,133.59 = 50,704.10/x
3. Step 3: Cross multiply
   83,409.81x = 115,133.59 × 50,704.10
4. Step 4: Simplify right side
   83,409.81x = 5,837,745,060.72
5. Step 5: Solve for x
   x = 5,837,745,060.72/83,409.81
6. Step 6: Final answer
   x = 69,988.71