Finding the Fourth Proportional to 12,056.90, 18,062.49 and 7,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,056.90 : 18,062.49 = 7,111.82 : x
2. Step 2: Convert to fraction form
   12,056.90/18,062.49 = 7,111.82/x
3. Step 3: Cross multiply
   12,056.90x = 18,062.49 × 7,111.82
4. Step 4: Simplify right side
   12,056.90x = 128,457,177.63
5. Step 5: Solve for x
   x = 128,457,177.63/12,056.90
6. Step 6: Final answer
   x = 10,654.25