Finding the Fourth Proportional to 37,790, 52,150.20 and 21,023

Step by Step Solution

1. Step 1: Write the proportion equation
   37,790 : 52,150.20 = 21,023 : x
2. Step 2: Convert to fraction form
   37,790/52,150.20 = 21,023/x
3. Step 3: Cross multiply
   37,790x = 52,150.20 × 21,023
4. Step 4: Simplify right side
   37,790x = 1,096,353,654.60
5. Step 5: Solve for x
   x = 1,096,353,654.60/37,790
6. Step 6: Final answer
   x = 29,011.74