Finding the Fourth Proportional to 12,929.78, 19,384.79 and 5,904.91

Step by Step Solution

1. Step 1: Write the proportion equation
   12,929.78 : 19,384.79 = 5,904.91 : x
2. Step 2: Convert to fraction form
   12,929.78/19,384.79 = 5,904.91/x
3. Step 3: Cross multiply
   12,929.78x = 19,384.79 × 5,904.91
4. Step 4: Simplify right side
   12,929.78x = 114,465,440.32
5. Step 5: Solve for x
   x = 114,465,440.32/12,929.78
6. Step 6: Final answer
   x = 8,852.85