Finding the Fourth Proportional to 37,749.30, 56,640.15 and 19,281.30

Step by Step Solution

1. Step 1: Write the proportion equation
   37,749.30 : 56,640.15 = 19,281.30 : x
2. Step 2: Convert to fraction form
   37,749.30/56,640.15 = 19,281.30/x
3. Step 3: Cross multiply
   37,749.30x = 56,640.15 × 19,281.30
4. Step 4: Simplify right side
   37,749.30x = 1,092,095,724.20
5. Step 5: Solve for x
   x = 1,092,095,724.20/37,749.30
6. Step 6: Final answer
   x = 28,930.22