Finding the Fourth Proportional to 37,905.84, 52,311.42 and 21,999.06

Step by Step Solution

1. Step 1: Write the proportion equation
   37,905.84 : 52,311.42 = 21,999.06 : x
2. Step 2: Convert to fraction form
   37,905.84/52,311.42 = 21,999.06/x
3. Step 3: Cross multiply
   37,905.84x = 52,311.42 × 21,999.06
4. Step 4: Simplify right side
   37,905.84x = 1,150,802,067.27
5. Step 5: Solve for x
   x = 1,150,802,067.27/37,905.84
6. Step 6: Final answer
   x = 30,359.49