Finding the Fourth Proportional to 34,780.05, 47,996.35 and 18,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,780.05 : 47,996.35 = 18,864.50 : x
2. Step 2: Convert to fraction form
   34,780.05/47,996.35 = 18,864.50/x
3. Step 3: Cross multiply
   34,780.05x = 47,996.35 × 18,864.50
4. Step 4: Simplify right side
   34,780.05x = 905,426,857.43
5. Step 5: Solve for x
   x = 905,426,857.43/34,780.05
6. Step 6: Final answer
   x = 26,032.94