Finding the Fourth Proportional to 10,665,749,419.68, 15,999,389,404.56 and 3,678,457,617.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,665,749,419.68 : 15,999,389,404.56 = 3,678,457,617.12 : x
2. Step 2: Convert to fraction form
   10,665,749,419.68/15,999,389,404.56 = 3,678,457,617.12/x
3. Step 3: Cross multiply
   10,665,749,419.68x = 15,999,389,404.56 × 3,678,457,617.12
4. Step 4: Simplify right side
   10,665,749,419.68x = 58,853,075,824,472,752,128
5. Step 5: Solve for x
   x = 58,853,075,824,472,752,128/10,665,749,419.68
6. Step 6: Final answer
   x = 5,517,950,357.61