Finding the Fourth Proportional to 35,411.69, 53,126.79 and 13,225.25

Step by Step Solution

1. Step 1: Write the proportion equation
   35,411.69 : 53,126.79 = 13,225.25 : x
2. Step 2: Convert to fraction form
   35,411.69/53,126.79 = 13,225.25/x
3. Step 3: Cross multiply
   35,411.69x = 53,126.79 × 13,225.25
4. Step 4: Simplify right side
   35,411.69x = 702,615,079.45
5. Step 5: Solve for x
   x = 702,615,079.45/35,411.69
6. Step 6: Final answer
   x = 19,841.33