Finding the Fourth Proportional to 35,796.72, 53,688.12 and 10,499.28

Step by Step Solution

1. Step 1: Write the proportion equation
   35,796.72 : 53,688.12 = 10,499.28 : x
2. Step 2: Convert to fraction form
   35,796.72/53,688.12 = 10,499.28/x
3. Step 3: Cross multiply
   35,796.72x = 53,688.12 × 10,499.28
4. Step 4: Simplify right side
   35,796.72x = 563,686,604.55
5. Step 5: Solve for x
   x = 563,686,604.55/35,796.72
6. Step 6: Final answer
   x = 15,746.88