Finding the Fourth Proportional to 12,665.37, 19,004.91 and 5,274.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,665.37 : 19,004.91 = 5,274.93 : x
2. Step 2: Convert to fraction form
   12,665.37/19,004.91 = 5,274.93/x
3. Step 3: Cross multiply
   12,665.37x = 19,004.91 × 5,274.93
4. Step 4: Simplify right side
   12,665.37x = 100,249,569.91
5. Step 5: Solve for x
   x = 100,249,569.91/12,665.37
6. Step 6: Final answer
   x = 7,915.25