Finding the Fourth Proportional to 8,768.69, 13,156.86 and 4,607.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,768.69 : 13,156.86 = 4,607.72 : x
2. Step 2: Convert to fraction form
   8,768.69/13,156.86 = 4,607.72/x
3. Step 3: Cross multiply
   8,768.69x = 13,156.86 × 4,607.72
4. Step 4: Simplify right side
   8,768.69x = 60,623,127.79
5. Step 5: Solve for x
   x = 60,623,127.79/8,768.69
6. Step 6: Final answer
   x = 6,913.59