Finding the Fourth Proportional to 12,775.86, 19,162.17 and 4,990.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,775.86 : 19,162.17 = 4,990.14 : x
2. Step 2: Convert to fraction form
   12,775.86/19,162.17 = 4,990.14/x
3. Step 3: Cross multiply
   12,775.86x = 19,162.17 × 4,990.14
4. Step 4: Simplify right side
   12,775.86x = 95,621,911.00
5. Step 5: Solve for x
   x = 95,621,911.00/12,775.86
6. Step 6: Final answer
   x = 7,484.58