Finding the Fourth Proportional to 8,889.84, 12,270.34 and 5,530.74

Step by Step Solution

1. Step 1: Write the proportion equation
   8,889.84 : 12,270.34 = 5,530.74 : x
2. Step 2: Convert to fraction form
   8,889.84/12,270.34 = 5,530.74/x
3. Step 3: Cross multiply
   8,889.84x = 12,270.34 × 5,530.74
4. Step 4: Simplify right side
   8,889.84x = 67,864,060.25
5. Step 5: Solve for x
   x = 67,864,060.25/8,889.84
6. Step 6: Final answer
   x = 7,633.89