Finding the Fourth Proportional to 37,665.86, 51,978.35 and 21,532.97

Step by Step Solution

1. Step 1: Write the proportion equation
   37,665.86 : 51,978.35 = 21,532.97 : x
2. Step 2: Convert to fraction form
   37,665.86/51,978.35 = 21,532.97/x
3. Step 3: Cross multiply
   37,665.86x = 51,978.35 × 21,532.97
4. Step 4: Simplify right side
   37,665.86x = 1,119,248,434.98
5. Step 5: Solve for x
   x = 1,119,248,434.98/37,665.86
6. Step 6: Final answer
   x = 29,715.20