Finding the Fourth Proportional to 37,583.55, 51,853.50 and 21,665.79

Step by Step Solution

1. Step 1: Write the proportion equation
   37,583.55 : 51,853.50 = 21,665.79 : x
2. Step 2: Convert to fraction form
   37,583.55/51,853.50 = 21,665.79/x
3. Step 3: Cross multiply
   37,583.55x = 51,853.50 × 21,665.79
4. Step 4: Simplify right side
   37,583.55x = 1,123,447,041.77
5. Step 5: Solve for x
   x = 1,123,447,041.77/37,583.55
6. Step 6: Final answer
   x = 29,891.99