Finding the Fourth Proportional to 37,802.96, 52,174.56 and 21,897.20

Step by Step Solution

1. Step 1: Write the proportion equation
   37,802.96 : 52,174.56 = 21,897.20 : x
2. Step 2: Convert to fraction form
   37,802.96/52,174.56 = 21,897.20/x
3. Step 3: Cross multiply
   37,802.96x = 52,174.56 × 21,897.20
4. Step 4: Simplify right side
   37,802.96x = 1,142,476,775.23
5. Step 5: Solve for x
   x = 1,142,476,775.23/37,802.96
6. Step 6: Final answer
   x = 30,221.89