Finding the Fourth Proportional to 8,740.98, 12,068.79 and 5,384.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,740.98 : 12,068.79 = 5,384.88 : x
2. Step 2: Convert to fraction form
   8,740.98/12,068.79 = 5,384.88/x
3. Step 3: Cross multiply
   8,740.98x = 12,068.79 × 5,384.88
4. Step 4: Simplify right side
   8,740.98x = 64,988,985.90
5. Step 5: Solve for x
   x = 64,988,985.90/8,740.98
6. Step 6: Final answer
   x = 7,434.98