Finding the Fourth Proportional to 9,621,868.88, 13,278,139.98 and 5,270,949.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,621,868.88 : 13,278,139.98 = 5,270,949.02 : x
2. Step 2: Convert to fraction form
   9,621,868.88/13,278,139.98 = 5,270,949.02/x
3. Step 3: Cross multiply
   9,621,868.88x = 13,278,139.98 × 5,270,949.02
4. Step 4: Simplify right side
   9,621,868.88x = 69,988,398,915,003.81
5. Step 5: Solve for x
   x = 69,988,398,915,003.81/9,621,868.88
6. Step 6: Final answer
   x = 7,273,888.24