Finding the Fourth Proportional to 13,836.84, 19,101.90 and 9,384.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,836.84 : 19,101.90 = 9,384.12 : x
2. Step 2: Convert to fraction form
   13,836.84/19,101.90 = 9,384.12/x
3. Step 3: Cross multiply
   13,836.84x = 19,101.90 × 9,384.12
4. Step 4: Simplify right side
   13,836.84x = 179,254,521.83
5. Step 5: Solve for x
   x = 179,254,521.83/13,836.84
6. Step 6: Final answer
   x = 12,954.87