Finding the Fourth Proportional to 35,053.53, 48,372.71 and 20,899.05

Step by Step Solution

1. Step 1: Write the proportion equation
   35,053.53 : 48,372.71 = 20,899.05 : x
2. Step 2: Convert to fraction form
   35,053.53/48,372.71 = 20,899.05/x
3. Step 3: Cross multiply
   35,053.53x = 48,372.71 × 20,899.05
4. Step 4: Simplify right side
   35,053.53x = 1,010,943,580.43
5. Step 5: Solve for x
   x = 1,010,943,580.43/35,053.53
6. Step 6: Final answer
   x = 28,839.99