Finding the Fourth Proportional to 9,643,978.50, 13,309,313.69 and 5,351,626.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643,978.50 : 13,309,313.69 = 5,351,626.50 : x
2. Step 2: Convert to fraction form
   9,643,978.50/13,309,313.69 = 5,351,626.50/x
3. Step 3: Cross multiply
   9,643,978.50x = 13,309,313.69 × 5,351,626.50
4. Step 4: Simplify right side
   9,643,978.50x = 71,226,475,840,216.78
5. Step 5: Solve for x
   x = 71,226,475,840,216.78/9,643,978.50
6. Step 6: Final answer
   x = 7,385,590.48