Finding the Fourth Proportional to 37,770.91, 52,117.73 and 21,852.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,770.91 : 52,117.73 = 21,852.28 : x
2. Step 2: Convert to fraction form
   37,770.91/52,117.73 = 21,852.28/x
3. Step 3: Cross multiply
   37,770.91x = 52,117.73 × 21,852.28
4. Step 4: Simplify right side
   37,770.91x = 1,138,891,266.76
5. Step 5: Solve for x
   x = 1,138,891,266.76/37,770.91
6. Step 6: Final answer
   x = 30,152.61