Finding the Fourth Proportional to 9,300.84, 12,836.03 and 5,109.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,300.84 : 12,836.03 = 5,109.90 : x
2. Step 2: Convert to fraction form
   9,300.84/12,836.03 = 5,109.90/x
3. Step 3: Cross multiply
   9,300.84x = 12,836.03 × 5,109.90
4. Step 4: Simplify right side
   9,300.84x = 65,590,852.28
5. Step 5: Solve for x
   x = 65,590,852.28/9,300.84
6. Step 6: Final answer
   x = 7,052.14