Finding the Fourth Proportional to 35,499.34, 53,235.78 and 11,800.54

Step by Step Solution

1. Step 1: Write the proportion equation
   35,499.34 : 53,235.78 = 11,800.54 : x
2. Step 2: Convert to fraction form
   35,499.34/53,235.78 = 11,800.54/x
3. Step 3: Cross multiply
   35,499.34x = 53,235.78 × 11,800.54
4. Step 4: Simplify right side
   35,499.34x = 628,210,951.32
5. Step 5: Solve for x
   x = 628,210,951.32/35,499.34
6. Step 6: Final answer
   x = 17,696.41