Finding the Fourth Proportional to 9,118,162.95, 12,581,832.28 and 5,198,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,118,162.95 : 12,581,832.28 = 5,198,424.72 : x
2. Step 2: Convert to fraction form
   9,118,162.95/12,581,832.28 = 5,198,424.72/x
3. Step 3: Cross multiply
   9,118,162.95x = 12,581,832.28 × 5,198,424.72
4. Step 4: Simplify right side
   9,118,162.95x = 65,405,707,947,245.95
5. Step 5: Solve for x
   x = 65,405,707,947,245.95/9,118,162.95
6. Step 6: Final answer
   x = 7,173,123.39