Finding the Fourth Proportional to 35,460.30, 48,919.83 and 21,112.10

Step by Step Solution

1. Step 1: Write the proportion equation
   35,460.30 : 48,919.83 = 21,112.10 : x
2. Step 2: Convert to fraction form
   35,460.30/48,919.83 = 21,112.10/x
3. Step 3: Cross multiply
   35,460.30x = 48,919.83 × 21,112.10
4. Step 4: Simplify right side
   35,460.30x = 1,032,800,342.94
5. Step 5: Solve for x
   x = 1,032,800,342.94/35,460.30
6. Step 6: Final answer
   x = 29,125.54