Finding the Fourth Proportional to 12,017.30, 16,591.59 and 7,774.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,017.30 : 16,591.59 = 7,774.88 : x
2. Step 2: Convert to fraction form
   12,017.30/16,591.59 = 7,774.88/x
3. Step 3: Cross multiply
   12,017.30x = 16,591.59 × 7,774.88
4. Step 4: Simplify right side
   12,017.30x = 128,997,538.30
5. Step 5: Solve for x
   x = 128,997,538.30/12,017.30
6. Step 6: Final answer
   x = 10,734.32