Finding the Fourth Proportional to 13,261.32, 18,300.59 and 7,597.90

Step by Step Solution

1. Step 1: Write the proportion equation
   13,261.32 : 18,300.59 = 7,597.90 : x
2. Step 2: Convert to fraction form
   13,261.32/18,300.59 = 7,597.90/x
3. Step 3: Cross multiply
   13,261.32x = 18,300.59 × 7,597.90
4. Step 4: Simplify right side
   13,261.32x = 139,046,026.00
5. Step 5: Solve for x
   x = 139,046,026.00/13,261.32
6. Step 6: Final answer
   x = 10,485.08