Finding the Fourth Proportional to 37,403.30, 51,603.78 and 21,269

Step by Step Solution

1. Step 1: Write the proportion equation
   37,403.30 : 51,603.78 = 21,269 : x
2. Step 2: Convert to fraction form
   37,403.30/51,603.78 = 21,269/x
3. Step 3: Cross multiply
   37,403.30x = 51,603.78 × 21,269
4. Step 4: Simplify right side
   37,403.30x = 1,097,560,796.82
5. Step 5: Solve for x
   x = 1,097,560,796.82/37,403.30
6. Step 6: Final answer
   x = 29,343.96