Finding the Fourth Proportional to 13,780.84, 19,017.48 and 7,493.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.84 : 19,017.48 = 7,493.08 : x
2. Step 2: Convert to fraction form
   13,780.84/19,017.48 = 7,493.08/x
3. Step 3: Cross multiply
   13,780.84x = 19,017.48 × 7,493.08
4. Step 4: Simplify right side
   13,780.84x = 142,499,499.04
5. Step 5: Solve for x
   x = 142,499,499.04/13,780.84
6. Step 6: Final answer
   x = 10,340.41