Finding the Fourth Proportional to 10,212.99, 15,314.45 and 5,997.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,212.99 : 15,314.45 = 5,997.30 : x
2. Step 2: Convert to fraction form
   10,212.99/15,314.45 = 5,997.30/x
3. Step 3: Cross multiply
   10,212.99x = 15,314.45 × 5,997.30
4. Step 4: Simplify right side
   10,212.99x = 91,845,321.00
5. Step 5: Solve for x
   x = 91,845,321.00/10,212.99
6. Step 6: Final answer
   x = 8,992.99