Finding the Fourth Proportional to 9,128.59, 12,597.45 and 4,936.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.59 : 12,597.45 = 4,936.84 : x
2. Step 2: Convert to fraction form
   9,128.59/12,597.45 = 4,936.84/x
3. Step 3: Cross multiply
   9,128.59x = 12,597.45 × 4,936.84
4. Step 4: Simplify right side
   9,128.59x = 62,191,595.06
5. Step 5: Solve for x
   x = 62,191,595.06/9,128.59
6. Step 6: Final answer
   x = 6,812.84