Finding the Fourth Proportional to 13,978,586.83, 19,290,265.79 and 7,698,993.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,978,586.83 : 19,290,265.79 = 7,698,993.49 : x
2. Step 2: Convert to fraction form
   13,978,586.83/19,290,265.79 = 7,698,993.49/x
3. Step 3: Cross multiply
   13,978,586.83x = 19,290,265.79 × 7,698,993.49
4. Step 4: Simplify right side
   13,978,586.83x = 148,515,630,737,579.72
5. Step 5: Solve for x
   x = 148,515,630,737,579.72/13,978,586.83
6. Step 6: Final answer
   x = 10,624,509.65