Finding the Fourth Proportional to 10,100.72, 15,157.56 and 4,903.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,100.72 : 15,157.56 = 4,903.76 : x
2. Step 2: Convert to fraction form
   10,100.72/15,157.56 = 4,903.76/x
3. Step 3: Cross multiply
   10,100.72x = 15,157.56 × 4,903.76
4. Step 4: Simplify right side
   10,100.72x = 74,328,960.64
5. Step 5: Solve for x
   x = 74,328,960.64/10,100.72
6. Step 6: Final answer
   x = 7,358.78