Finding the Fourth Proportional to 9,875.42, 13,627.34 and 5,399.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,875.42 : 13,627.34 = 5,399.26 : x
2. Step 2: Convert to fraction form
   9,875.42/13,627.34 = 5,399.26/x
3. Step 3: Cross multiply
   9,875.42x = 13,627.34 × 5,399.26
4. Step 4: Simplify right side
   9,875.42x = 73,577,510.95
5. Step 5: Solve for x
   x = 73,577,510.95/9,875.42
6. Step 6: Final answer
   x = 7,450.57