Finding the Fourth Proportional to 12,040,128.69, 18,060,799.93 and 3,404,850.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,040,128.69 : 18,060,799.93 = 3,404,850.09 : x
2. Step 2: Convert to fraction form
   12,040,128.69/18,060,799.93 = 3,404,850.09/x
3. Step 3: Cross multiply
   12,040,128.69x = 18,060,799.93 × 3,404,850.09
4. Step 4: Simplify right side
   12,040,128.69x = 61,494,316,186,105.15
5. Step 5: Solve for x
   x = 61,494,316,186,105.15/12,040,128.69
6. Step 6: Final answer
   x = 5,107,446.75