Finding the Fourth Proportional to 13,907,016.77, 20,866,519.15 and 7,521,764.09

Step by Step Solution

1. Step 1: Write the proportion equation
   13,907,016.77 : 20,866,519.15 = 7,521,764.09 : x
2. Step 2: Convert to fraction form
   13,907,016.77/20,866,519.15 = 7,521,764.09/x
3. Step 3: Cross multiply
   13,907,016.77x = 20,866,519.15 × 7,521,764.09
4. Step 4: Simplify right side
   13,907,016.77x = 156,953,034,302,630.31
5. Step 5: Solve for x
   x = 156,953,034,302,630.31/13,907,016.77
6. Step 6: Final answer
   x = 11,285,888.05