Finding the Fourth Proportional to 19,010.08, 28,516.56 and 5,160.16

Step by Step Solution

1. Step 1: Write the proportion equation
   19,010.08 : 28,516.56 = 5,160.16 : x
2. Step 2: Convert to fraction form
   19,010.08/28,516.56 = 5,160.16/x
3. Step 3: Cross multiply
   19,010.08x = 28,516.56 × 5,160.16
4. Step 4: Simplify right side
   19,010.08x = 147,150,012.25
5. Step 5: Solve for x
   x = 147,150,012.25/19,010.08
6. Step 6: Final answer
   x = 7,740.63