Finding the Fourth Proportional to 14,251,100.78, 19,665,992.20 and 7,724,590.11

Step by Step Solution

1. Step 1: Write the proportion equation
   14,251,100.78 : 19,665,992.20 = 7,724,590.11 : x
2. Step 2: Convert to fraction form
   14,251,100.78/19,665,992.20 = 7,724,590.11/x
3. Step 3: Cross multiply
   14,251,100.78x = 19,665,992.20 × 7,724,590.11
4. Step 4: Simplify right side
   14,251,100.78x = 151,911,728,832,145.69
5. Step 5: Solve for x
   x = 151,911,728,832,145.69/14,251,100.78
6. Step 6: Final answer
   x = 10,659,648.77