Finding the Fourth Proportional to 37,128.76, 51,238.86 and 20,363.32

Step by Step Solution

1. Step 1: Write the proportion equation
   37,128.76 : 51,238.86 = 20,363.32 : x
2. Step 2: Convert to fraction form
   37,128.76/51,238.86 = 20,363.32/x
3. Step 3: Cross multiply
   37,128.76x = 51,238.86 × 20,363.32
4. Step 4: Simplify right side
   37,128.76x = 1,043,393,302.62
5. Step 5: Solve for x
   x = 1,043,393,302.62/37,128.76
6. Step 6: Final answer
   x = 28,102.02