Finding the Fourth Proportional to 12,272.61, 18,409.32 and 3,507.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,272.61 : 18,409.32 = 3,507.60 : x
2. Step 2: Convert to fraction form
   12,272.61/18,409.32 = 3,507.60/x
3. Step 3: Cross multiply
   12,272.61x = 18,409.32 × 3,507.60
4. Step 4: Simplify right side
   12,272.61x = 64,572,530.83
5. Step 5: Solve for x
   x = 64,572,530.83/12,272.61
6. Step 6: Final answer
   x = 5,261.52