Finding the Fourth Proportional to 13,780.31, 19,016.97 and 7,492.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,780.31 : 19,016.97 = 7,492.82 : x
2. Step 2: Convert to fraction form
   13,780.31/19,016.97 = 7,492.82/x
3. Step 3: Cross multiply
   13,780.31x = 19,016.97 × 7,492.82
4. Step 4: Simplify right side
   13,780.31x = 142,490,733.16
5. Step 5: Solve for x
   x = 142,490,733.16/13,780.31
6. Step 6: Final answer
   x = 10,340.17