Finding the Fourth Proportional to 10,301.91, 15,453.78 and 5,619.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,301.91 : 15,453.78 = 5,619.91 : x
2. Step 2: Convert to fraction form
   10,301.91/15,453.78 = 5,619.91/x
3. Step 3: Cross multiply
   10,301.91x = 15,453.78 × 5,619.91
4. Step 4: Simplify right side
   10,301.91x = 86,848,837.83
5. Step 5: Solve for x
   x = 86,848,837.83/10,301.91
6. Step 6: Final answer
   x = 8,430.36