Finding the Fourth Proportional to 10,109.12, 15,165.10 and 3,533.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,109.12 : 15,165.10 = 3,533.81 : x
2. Step 2: Convert to fraction form
   10,109.12/15,165.10 = 3,533.81/x
3. Step 3: Cross multiply
   10,109.12x = 15,165.10 × 3,533.81
4. Step 4: Simplify right side
   10,109.12x = 53,590,526.45
5. Step 5: Solve for x
   x = 53,590,526.45/10,109.12
6. Step 6: Final answer
   x = 5,301.21