Finding the Fourth Proportional to 12,779,106.72, 17,635,252.71 and 6,977,928.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,779,106.72 : 17,635,252.71 = 6,977,928.84 : x
2. Step 2: Convert to fraction form
   12,779,106.72/17,635,252.71 = 6,977,928.84/x
3. Step 3: Cross multiply
   12,779,106.72x = 17,635,252.71 × 6,977,928.84
4. Step 4: Simplify right side
   12,779,106.72x = 123,057,538,485,797.16
5. Step 5: Solve for x
   x = 123,057,538,485,797.16/12,779,106.72
6. Step 6: Final answer
   x = 9,629,588.45