Finding the Fourth Proportional to 35,109.45, 48,472.83 and 21,699.09

Step by Step Solution

1. Step 1: Write the proportion equation
   35,109.45 : 48,472.83 = 21,699.09 : x
2. Step 2: Convert to fraction form
   35,109.45/48,472.83 = 21,699.09/x
3. Step 3: Cross multiply
   35,109.45x = 48,472.83 × 21,699.09
4. Step 4: Simplify right side
   35,109.45x = 1,051,816,300.72
5. Step 5: Solve for x
   x = 1,051,816,300.72/35,109.45
6. Step 6: Final answer
   x = 29,958.21