Finding the Fourth Proportional to 37,783.31, 52,141.28 and 21,016.31

Step by Step Solution

1. Step 1: Write the proportion equation
   37,783.31 : 52,141.28 = 21,016.31 : x
2. Step 2: Convert to fraction form
   37,783.31/52,141.28 = 21,016.31/x
3. Step 3: Cross multiply
   37,783.31x = 52,141.28 × 21,016.31
4. Step 4: Simplify right side
   37,783.31x = 1,095,817,329.55
5. Step 5: Solve for x
   x = 1,095,817,329.55/37,783.31
6. Step 6: Final answer
   x = 29,002.68