Finding the Fourth Proportional to 11,991,878.69, 17,983,790.19 and 3,902,951.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,991,878.69 : 17,983,790.19 = 3,902,951.98 : x
2. Step 2: Convert to fraction form
   11,991,878.69/17,983,790.19 = 3,902,951.98/x
3. Step 3: Cross multiply
   11,991,878.69x = 17,983,790.19 × 3,902,951.98
4. Step 4: Simplify right side
   11,991,878.69x = 70,189,869,521,672.36
5. Step 5: Solve for x
   x = 70,189,869,521,672.36/11,991,878.69
6. Step 6: Final answer
   x = 5,853,117.04