Finding the Fourth Proportional to 9,870,528.98, 13,621,701.96 and 5,519,605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870,528.98 : 13,621,701.96 = 5,519,605.48 : x
2. Step 2: Convert to fraction form
   9,870,528.98/13,621,701.96 = 5,519,605.48/x
3. Step 3: Cross multiply
   9,870,528.98x = 13,621,701.96 × 5,519,605.48
4. Step 4: Simplify right side
   9,870,528.98x = 75,186,420,751,288.48
5. Step 5: Solve for x
   x = 75,186,420,751,288.48/9,870,528.98
6. Step 6: Final answer
   x = 7,617,263.56