Finding the Fourth Proportional to 69,814.26, 103,931.72 and 69,399.07

Step by Step Solution

1. Step 1: Write the proportion equation
   69,814.26 : 103,931.72 = 69,399.07 : x
2. Step 2: Convert to fraction form
   69,814.26/103,931.72 = 69,399.07/x
3. Step 3: Cross multiply
   69,814.26x = 103,931.72 × 69,399.07
4. Step 4: Simplify right side
   69,814.26x = 7,212,764,711.50
5. Step 5: Solve for x
   x = 7,212,764,711.50/69,814.26
6. Step 6: Final answer
   x = 103,313.63