Finding the Fourth Proportional to 37,298.72, 51,470.88 and 20,531.36

Step by Step Solution

1. Step 1: Write the proportion equation
   37,298.72 : 51,470.88 = 20,531.36 : x
2. Step 2: Convert to fraction form
   37,298.72/51,470.88 = 20,531.36/x
3. Step 3: Cross multiply
   37,298.72x = 51,470.88 × 20,531.36
4. Step 4: Simplify right side
   37,298.72x = 1,056,767,166.80
5. Step 5: Solve for x
   x = 1,056,767,166.80/37,298.72
6. Step 6: Final answer
   x = 28,332.53