Finding the Fourth Proportional to 9,725.06, 13,420.59 and 5,534.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,725.06 : 13,420.59 = 5,534.12 : x
2. Step 2: Convert to fraction form
   9,725.06/13,420.59 = 5,534.12/x
3. Step 3: Cross multiply
   9,725.06x = 13,420.59 × 5,534.12
4. Step 4: Simplify right side
   9,725.06x = 74,271,168.33
5. Step 5: Solve for x
   x = 74,271,168.33/9,725.06
6. Step 6: Final answer
   x = 7,637.09