Finding the Fourth Proportional to 10,012.30, 14,997.94 and 5,620.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.30 : 14,997.94 = 5,620.55 : x
2. Step 2: Convert to fraction form
   10,012.30/14,997.94 = 5,620.55/x
3. Step 3: Cross multiply
   10,012.30x = 14,997.94 × 5,620.55
4. Step 4: Simplify right side
   10,012.30x = 84,296,582.63
5. Step 5: Solve for x
   x = 84,296,582.63/10,012.30
6. Step 6: Final answer
   x = 8,419.30