Finding the Fourth Proportional to 11,787,051.48, 17,691,979.76 and 8,507,786.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,787,051.48 : 17,691,979.76 = 8,507,786.83 : x
2. Step 2: Convert to fraction form
   11,787,051.48/17,691,979.76 = 8,507,786.83/x
3. Step 3: Cross multiply
   11,787,051.48x = 17,691,979.76 × 8,507,786.83
4. Step 4: Simplify right side
   11,787,051.48x = 150,519,592,343,889.88
5. Step 5: Solve for x
   x = 150,519,592,343,889.88/11,787,051.48
6. Step 6: Final answer
   x = 12,769,910.49