Finding the Fourth Proportional to 12,131.30, 18,189.08 and 4,736.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.30 : 18,189.08 = 4,736.53 : x
2. Step 2: Convert to fraction form
   12,131.30/18,189.08 = 4,736.53/x
3. Step 3: Cross multiply
   12,131.30x = 18,189.08 × 4,736.53
4. Step 4: Simplify right side
   12,131.30x = 86,153,008.46
5. Step 5: Solve for x
   x = 86,153,008.46/12,131.30
6. Step 6: Final answer
   x = 7,101.71