Finding the Fourth Proportional to 51,323.60, 69,403.50 and 51,323.60

Step by Step Solution

1. Step 1: Write the proportion equation
   51,323.60 : 69,403.50 = 51,323.60 : x
2. Step 2: Convert to fraction form
   51,323.60/69,403.50 = 51,323.60/x
3. Step 3: Cross multiply
   51,323.60x = 69,403.50 × 51,323.60
4. Step 4: Simplify right side
   51,323.60x = 3,562,037,472.60
5. Step 5: Solve for x
   x = 3,562,037,472.60/51,323.60
6. Step 6: Final answer
   x = 69,403.50