Finding the Fourth Proportional to 14,152.69, 19,530.72 and 7,865.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,152.69 : 19,530.72 = 7,865.06 : x
2. Step 2: Convert to fraction form
   14,152.69/19,530.72 = 7,865.06/x
3. Step 3: Cross multiply
   14,152.69x = 19,530.72 × 7,865.06
4. Step 4: Simplify right side
   14,152.69x = 153,610,333.47
5. Step 5: Solve for x
   x = 153,610,333.47/14,152.69
6. Step 6: Final answer
   x = 10,853.79