Finding the Fourth Proportional to 10,185.34, 15,301.40 and 7,190.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.34 : 15,301.40 = 7,190.26 : x
2. Step 2: Convert to fraction form
   10,185.34/15,301.40 = 7,190.26/x
3. Step 3: Cross multiply
   10,185.34x = 15,301.40 × 7,190.26
4. Step 4: Simplify right side
   10,185.34x = 110,020,970.16
5. Step 5: Solve for x
   x = 110,020,970.16/10,185.34
6. Step 6: Final answer
   x = 10,801.90