Finding the Fourth Proportional to 10,274.07, 14,178.18 and 5,558.35

Step by Step Solution

1. Step 1: Write the proportion equation
   10,274.07 : 14,178.18 = 5,558.35 : x
2. Step 2: Convert to fraction form
   10,274.07/14,178.18 = 5,558.35/x
3. Step 3: Cross multiply
   10,274.07x = 14,178.18 × 5,558.35
4. Step 4: Simplify right side
   10,274.07x = 78,807,215.91
5. Step 5: Solve for x
   x = 78,807,215.91/10,274.07
6. Step 6: Final answer
   x = 7,670.50