Finding the Fourth Proportional to 13,755.16, 18,962.72 and 9,774.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,755.16 : 18,962.72 = 9,774.82 : x
2. Step 2: Convert to fraction form
   13,755.16/18,962.72 = 9,774.82/x
3. Step 3: Cross multiply
   13,755.16x = 18,962.72 × 9,774.82
4. Step 4: Simplify right side
   13,755.16x = 185,357,079.90
5. Step 5: Solve for x
   x = 185,357,079.90/13,755.16
6. Step 6: Final answer
   x = 13,475.46