Finding the Fourth Proportional to 12,997,700.56, 17,937,387.12 and 7,196,482.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,700.56 : 17,937,387.12 = 7,196,482.09 : x
2. Step 2: Convert to fraction form
   12,997,700.56/17,937,387.12 = 7,196,482.09/x
3. Step 3: Cross multiply
   12,997,700.56x = 17,937,387.12 × 7,196,482.09
4. Step 4: Simplify right side
   12,997,700.56x = 129,086,085,150,476.69
5. Step 5: Solve for x
   x = 129,086,085,150,476.69/12,997,700.56
6. Step 6: Final answer
   x = 9,931,455.53