Finding the Fourth Proportional to 8,530.07, 12,784.35 and 4,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,530.07 : 12,784.35 = 4,571.50 : x
2. Step 2: Convert to fraction form
   8,530.07/12,784.35 = 4,571.50/x
3. Step 3: Cross multiply
   8,530.07x = 12,784.35 × 4,571.50
4. Step 4: Simplify right side
   8,530.07x = 58,443,656.03
5. Step 5: Solve for x
   x = 58,443,656.03/8,530.07
6. Step 6: Final answer
   x = 6,851.49