Finding the Fourth Proportional to 9,697,776, 13,391,581.59 and 9,238,374.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,697,776 : 13,391,581.59 = 9,238,374.78 : x
2. Step 2: Convert to fraction form
   9,697,776/13,391,581.59 = 9,238,374.78/x
3. Step 3: Cross multiply
   9,697,776x = 13,391,581.59 × 9,238,374.78
4. Step 4: Simplify right side
   9,697,776x = 123,716,449,625,368.30
5. Step 5: Solve for x
   x = 123,716,449,625,368.30/9,697,776
6. Step 6: Final answer
   x = 12,757,198.11