Finding the Fourth Proportional to 12,824,781.10, 17,697,852.27 and 7,318,056.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,824,781.10 : 17,697,852.27 = 7,318,056.31 : x
2. Step 2: Convert to fraction form
   12,824,781.10/17,697,852.27 = 7,318,056.31/x
3. Step 3: Cross multiply
   12,824,781.10x = 17,697,852.27 × 7,318,056.31
4. Step 4: Simplify right side
   12,824,781.10x = 129,513,879,433,676.69
5. Step 5: Solve for x
   x = 129,513,879,433,676.69/12,824,781.10
6. Step 6: Final answer
   x = 10,098,720.47