Finding the Fourth Proportional to 13,153.76, 18,152.72 and 7,564.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,153.76 : 18,152.72 = 7,564.76 : x
2. Step 2: Convert to fraction form
   13,153.76/18,152.72 = 7,564.76/x
3. Step 3: Cross multiply
   13,153.76x = 18,152.72 × 7,564.76
4. Step 4: Simplify right side
   13,153.76x = 137,320,970.15
5. Step 5: Solve for x
   x = 137,320,970.15/13,153.76
6. Step 6: Final answer
   x = 10,439.67