Finding the Fourth Proportional to 37,155.25, 51,272.89 and 21,238.75

Step by Step Solution

1. Step 1: Write the proportion equation
   37,155.25 : 51,272.89 = 21,238.75 : x
2. Step 2: Convert to fraction form
   37,155.25/51,272.89 = 21,238.75/x
3. Step 3: Cross multiply
   37,155.25x = 51,272.89 × 21,238.75
4. Step 4: Simplify right side
   37,155.25x = 1,088,972,092.49
5. Step 5: Solve for x
   x = 1,088,972,092.49/37,155.25
6. Step 6: Final answer
   x = 29,308.70