Finding the Fourth Proportional to 13,802.31, 19,047.20 and 7,514.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,802.31 : 19,047.20 = 7,514.69 : x
2. Step 2: Convert to fraction form
   13,802.31/19,047.20 = 7,514.69/x
3. Step 3: Cross multiply
   13,802.31x = 19,047.20 × 7,514.69
4. Step 4: Simplify right side
   13,802.31x = 143,133,803.37
5. Step 5: Solve for x
   x = 143,133,803.37/13,802.31
6. Step 6: Final answer
   x = 10,370.28