Finding the Fourth Proportional to 9,577,878.72, 13,206,704.42 and 7,830,144.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,577,878.72 : 13,206,704.42 = 7,830,144.96 : x
2. Step 2: Convert to fraction form
   9,577,878.72/13,206,704.42 = 7,830,144.96/x
3. Step 3: Cross multiply
   9,577,878.72x = 13,206,704.42 × 7,830,144.96
4. Step 4: Simplify right side
   9,577,878.72x = 103,410,410,052,472.72
5. Step 5: Solve for x
   x = 103,410,410,052,472.72/9,577,878.72
6. Step 6: Final answer
   x = 10,796,796.77