Finding the Fourth Proportional to 10,602.50, 15,903.81 and 4,757.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,602.50 : 15,903.81 = 4,757.67 : x
2. Step 2: Convert to fraction form
   10,602.50/15,903.81 = 4,757.67/x
3. Step 3: Cross multiply
   10,602.50x = 15,903.81 × 4,757.67
4. Step 4: Simplify right side
   10,602.50x = 75,665,079.72
5. Step 5: Solve for x
   x = 75,665,079.72/10,602.50
6. Step 6: Final answer
   x = 7,136.54