Finding the Fourth Proportional to 9,081.52, 13,620.15 and 4,152.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,081.52 : 13,620.15 = 4,152.57 : x
2. Step 2: Convert to fraction form
   9,081.52/13,620.15 = 4,152.57/x
3. Step 3: Cross multiply
   9,081.52x = 13,620.15 × 4,152.57
4. Step 4: Simplify right side
   9,081.52x = 56,558,575.21
5. Step 5: Solve for x
   x = 56,558,575.21/9,081.52
6. Step 6: Final answer
   x = 6,227.88