Finding the Fourth Proportional to 37,030.20, 51,101.72 and 21,114.78

Step by Step Solution

1. Step 1: Write the proportion equation
   37,030.20 : 51,101.72 = 21,114.78 : x
2. Step 2: Convert to fraction form
   37,030.20/51,101.72 = 21,114.78/x
3. Step 3: Cross multiply
   37,030.20x = 51,101.72 × 21,114.78
4. Step 4: Simplify right side
   37,030.20x = 1,079,001,575.42
5. Step 5: Solve for x
   x = 1,079,001,575.42/37,030.20
6. Step 6: Final answer
   x = 29,138.42