Finding the Fourth Proportional to 19,648.08, 29,484.42 and 7,961.31

Step by Step Solution

1. Step 1: Write the proportion equation
   19,648.08 : 29,484.42 = 7,961.31 : x
2. Step 2: Convert to fraction form
   19,648.08/29,484.42 = 7,961.31/x
3. Step 3: Cross multiply
   19,648.08x = 29,484.42 × 7,961.31
4. Step 4: Simplify right side
   19,648.08x = 234,734,607.79
5. Step 5: Solve for x
   x = 234,734,607.79/19,648.08
6. Step 6: Final answer
   x = 11,946.95