Finding the Fourth Proportional to 9,191,115.78, 12,683,739.78 and 5,061,137.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,191,115.78 : 12,683,739.78 = 5,061,137.08 : x
2. Step 2: Convert to fraction form
   9,191,115.78/12,683,739.78 = 5,061,137.08/x
3. Step 3: Cross multiply
   9,191,115.78x = 12,683,739.78 × 5,061,137.08
4. Step 4: Simplify right side
   9,191,115.78x = 64,194,145,704,133.59
5. Step 5: Solve for x
   x = 64,194,145,704,133.59/9,191,115.78
6. Step 6: Final answer
   x = 6,984,369.17