Finding the Fourth Proportional to 9,919,647.28, 13,688,357.34 and 5,567,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,919,647.28 : 13,688,357.34 = 5,567,892.72 : x
2. Step 2: Convert to fraction form
   9,919,647.28/13,688,357.34 = 5,567,892.72/x
3. Step 3: Cross multiply
   9,919,647.28x = 13,688,357.34 × 5,567,892.72
4. Step 4: Simplify right side
   9,919,647.28x = 76,215,305,182,144.56
5. Step 5: Solve for x
   x = 76,215,305,182,144.56/9,919,647.28
6. Step 6: Final answer
   x = 7,683,267.66