Finding the Fourth Proportional to 34,086.38, 47,038.83 and 18,978.71

Step by Step Solution

1. Step 1: Write the proportion equation
   34,086.38 : 47,038.83 = 18,978.71 : x
2. Step 2: Convert to fraction form
   34,086.38/47,038.83 = 18,978.71/x
3. Step 3: Cross multiply
   34,086.38x = 47,038.83 × 18,978.71
4. Step 4: Simplify right side
   34,086.38x = 892,736,313.31
5. Step 5: Solve for x
   x = 892,736,313.31/34,086.38
6. Step 6: Final answer
   x = 26,190.41