Finding the Fourth Proportional to 37,678.47, 56,743.32 and 34,315.43

Step by Step Solution

1. Step 1: Write the proportion equation
   37,678.47 : 56,743.32 = 34,315.43 : x
2. Step 2: Convert to fraction form
   37,678.47/56,743.32 = 34,315.43/x
3. Step 3: Cross multiply
   37,678.47x = 56,743.32 × 34,315.43
4. Step 4: Simplify right side
   37,678.47x = 1,947,171,141.71
5. Step 5: Solve for x
   x = 1,947,171,141.71/37,678.47
6. Step 6: Final answer
   x = 51,678.61