Finding the Fourth Proportional to 12,997,648.14, 17,936,943.39 and 7,487,982.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,648.14 : 17,936,943.39 = 7,487,982.78 : x
2. Step 2: Convert to fraction form
   12,997,648.14/17,936,943.39 = 7,487,982.78/x
3. Step 3: Cross multiply
   12,997,648.14x = 17,936,943.39 × 7,487,982.78
4. Step 4: Simplify right side
   12,997,648.14x = 134,311,523,230,154.83
5. Step 5: Solve for x
   x = 134,311,523,230,154.83/12,997,648.14
6. Step 6: Final answer
   x = 10,333,525.09