Finding the Fourth Proportional to 12,916.72, 19,384.71 and 5,020.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916.72 : 19,384.71 = 5,020.48 : x
2. Step 2: Convert to fraction form
   12,916.72/19,384.71 = 5,020.48/x
3. Step 3: Cross multiply
   12,916.72x = 19,384.71 × 5,020.48
4. Step 4: Simplify right side
   12,916.72x = 97,320,548.86
5. Step 5: Solve for x
   x = 97,320,548.86/12,916.72
6. Step 6: Final answer
   x = 7,534.46