Finding the Fourth Proportional to 35,155.14, 48,528.18 and 21,005.34

Step by Step Solution

1. Step 1: Write the proportion equation
   35,155.14 : 48,528.18 = 21,005.34 : x
2. Step 2: Convert to fraction form
   35,155.14/48,528.18 = 21,005.34/x
3. Step 3: Cross multiply
   35,155.14x = 48,528.18 × 21,005.34
4. Step 4: Simplify right side
   35,155.14x = 1,019,350,920.48
5. Step 5: Solve for x
   x = 1,019,350,920.48/35,155.14
6. Step 6: Final answer
   x = 28,995.79