Finding the Fourth Proportional to 12,870.84, 17,761.59 and 7,281.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,870.84 : 17,761.59 = 7,281.84 : x
2. Step 2: Convert to fraction form
   12,870.84/17,761.59 = 7,281.84/x
3. Step 3: Cross multiply
   12,870.84x = 17,761.59 × 7,281.84
4. Step 4: Simplify right side
   12,870.84x = 129,337,056.53
5. Step 5: Solve for x
   x = 129,337,056.53/12,870.84
6. Step 6: Final answer
   x = 10,048.84