Finding the Fourth Proportional to 37,945.50, 52,364.79 and 21,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,945.50 : 52,364.79 = 21,178.50 : x
2. Step 2: Convert to fraction form
   37,945.50/52,364.79 = 21,178.50/x
3. Step 3: Cross multiply
   37,945.50x = 52,364.79 × 21,178.50
4. Step 4: Simplify right side
   37,945.50x = 1,109,007,705.02
5. Step 5: Solve for x
   x = 1,109,007,705.02/37,945.50
6. Step 6: Final answer
   x = 29,226.33