Finding the Fourth Proportional to 35,944.63, 53,920.69 and 13,776.75

Step by Step Solution

1. Step 1: Write the proportion equation
   35,944.63 : 53,920.69 = 13,776.75 : x
2. Step 2: Convert to fraction form
   35,944.63/53,920.69 = 13,776.75/x
3. Step 3: Cross multiply
   35,944.63x = 53,920.69 × 13,776.75
4. Step 4: Simplify right side
   35,944.63x = 742,851,831.52
5. Step 5: Solve for x
   x = 742,851,831.52/35,944.63
6. Step 6: Final answer
   x = 20,666.56