Finding the Fourth Proportional to 12,147,926.69, 18,221,908.72 and 4,864,666.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,147,926.69 : 18,221,908.72 = 4,864,666.30 : x
2. Step 2: Convert to fraction form
   12,147,926.69/18,221,908.72 = 4,864,666.30/x
3. Step 3: Cross multiply
   12,147,926.69x = 18,221,908.72 × 4,864,666.30
4. Step 4: Simplify right side
   12,147,926.69x = 88,643,505,271,860.12
5. Step 5: Solve for x
   x = 88,643,505,271,860.12/12,147,926.69
6. Step 6: Final answer
   x = 7,297,006.93