Finding the Fourth Proportional to 12,779,942,018.36, 17,638,071,979.86 and 7,354,366,124.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,779,942,018.36 : 17,638,071,979.86 = 7,354,366,124.96 : x
2. Step 2: Convert to fraction form
   12,779,942,018.36/17,638,071,979.86 = 7,354,366,124.96/x
3. Step 3: Cross multiply
   12,779,942,018.36x = 17,638,071,979.86 × 7,354,366,124.96
4. Step 4: Simplify right side
   12,779,942,018.36x = 129,716,839,078,288,556,032
5. Step 5: Solve for x
   x = 129,716,839,078,288,556,032/12,779,942,018.36
6. Step 6: Final answer
   x = 10,150,033,458.05