Finding the Fourth Proportional to 35,535.61, 53,171.88 and 28,494.10

Step by Step Solution

1. Step 1: Write the proportion equation
   35,535.61 : 53,171.88 = 28,494.10 : x
2. Step 2: Convert to fraction form
   35,535.61/53,171.88 = 28,494.10/x
3. Step 3: Cross multiply
   35,535.61x = 53,171.88 × 28,494.10
4. Step 4: Simplify right side
   35,535.61x = 1,515,084,865.91
5. Step 5: Solve for x
   x = 1,515,084,865.91/35,535.61
6. Step 6: Final answer
   x = 42,635.68