Finding the Fourth Proportional to 13,780.01, 19,016.30 and 7,492.43

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.01 : 19,016.30 = 7,492.43 : x
2. Step 2: Convert to fraction form
   13,780.01/19,016.30 = 7,492.43/x
3. Step 3: Cross multiply
   13,780.01x = 19,016.30 × 7,492.43
4. Step 4: Simplify right side
   13,780.01x = 142,478,164.07
5. Step 5: Solve for x
   x = 142,478,164.07/13,780.01
6. Step 6: Final answer
   x = 10,339.49