Finding the Fourth Proportional to 13,916.61, 19,204.55 and 7,947.33

Step by Step Solution

1. Step 1: Write the proportion equation
   13,916.61 : 19,204.55 = 7,947.33 : x
2. Step 2: Convert to fraction form
   13,916.61/19,204.55 = 7,947.33/x
3. Step 3: Cross multiply
   13,916.61x = 19,204.55 × 7,947.33
4. Step 4: Simplify right side
   13,916.61x = 152,624,856.61
5. Step 5: Solve for x
   x = 152,624,856.61/13,916.61
6. Step 6: Final answer
   x = 10,967.10