Finding the Fourth Proportional to 37,789.34, 52,145.37 and 21,870.41

Step by Step Solution

1. Step 1: Write the proportion equation
   37,789.34 : 52,145.37 = 21,870.41 : x
2. Step 2: Convert to fraction form
   37,789.34/52,145.37 = 21,870.41/x
3. Step 3: Cross multiply
   37,789.34x = 52,145.37 × 21,870.41
4. Step 4: Simplify right side
   37,789.34x = 1,140,440,360.77
5. Step 5: Solve for x
   x = 1,140,440,360.77/37,789.34
6. Step 6: Final answer
   x = 30,178.89