Finding the Fourth Proportional to 25,404.93, 38,111.09 and 7,876.17

Step by Step Solution

1. Step 1: Write the proportion equation
   25,404.93 : 38,111.09 = 7,876.17 : x
2. Step 2: Convert to fraction form
   25,404.93/38,111.09 = 7,876.17/x
3. Step 3: Cross multiply
   25,404.93x = 38,111.09 × 7,876.17
4. Step 4: Simplify right side
   25,404.93x = 300,169,384.34
5. Step 5: Solve for x
   x = 300,169,384.34/25,404.93
6. Step 6: Final answer
   x = 11,815.40