Finding the Fourth Proportional to 8,930.07, 12,328.38 and 5,905.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,930.07 : 12,328.38 = 5,905.34 : x
2. Step 2: Convert to fraction form
   8,930.07/12,328.38 = 5,905.34/x
3. Step 3: Cross multiply
   8,930.07x = 12,328.38 × 5,905.34
4. Step 4: Simplify right side
   8,930.07x = 72,803,213.91
5. Step 5: Solve for x
   x = 72,803,213.91/8,930.07
6. Step 6: Final answer
   x = 8,152.59