Finding the Fourth Proportional to 35,150.12, 48,505.72 and 21,010.76

Step by Step Solution

1. Step 1: Write the proportion equation
   35,150.12 : 48,505.72 = 21,010.76 : x
2. Step 2: Convert to fraction form
   35,150.12/48,505.72 = 21,010.76/x
3. Step 3: Cross multiply
   35,150.12x = 48,505.72 × 21,010.76
4. Step 4: Simplify right side
   35,150.12x = 1,019,142,041.55
5. Step 5: Solve for x
   x = 1,019,142,041.55/35,150.12
6. Step 6: Final answer
   x = 28,993.98