Finding the Fourth Proportional to 12,298.56, 18,451.44 and 5,274.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.56 : 18,451.44 = 5,274.88 : x
2. Step 2: Convert to fraction form
   12,298.56/18,451.44 = 5,274.88/x
3. Step 3: Cross multiply
   12,298.56x = 18,451.44 × 5,274.88
4. Step 4: Simplify right side
   12,298.56x = 97,329,131.83
5. Step 5: Solve for x
   x = 97,329,131.83/12,298.56
6. Step 6: Final answer
   x = 7,913.86