Finding the Fourth Proportional to 13,839,638.83, 19,099,281.80 and 7,959,277.60

Step by Step Solution

1. Step 1: Write the proportion equation
   13,839,638.83 : 19,099,281.80 = 7,959,277.60 : x
2. Step 2: Convert to fraction form
   13,839,638.83/19,099,281.80 = 7,959,277.60/x
3. Step 3: Cross multiply
   13,839,638.83x = 19,099,281.80 × 7,959,277.60
4. Step 4: Simplify right side
   13,839,638.83x = 152,016,485,839,789.50
5. Step 5: Solve for x
   x = 152,016,485,839,789.50/13,839,638.83
6. Step 6: Final answer
   x = 10,984,136.78