Finding the Fourth Proportional to 13,047.72, 19,522.76 and 7,763.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.72 : 19,522.76 = 7,763.46 : x
2. Step 2: Convert to fraction form
   13,047.72/19,522.76 = 7,763.46/x
3. Step 3: Cross multiply
   13,047.72x = 19,522.76 × 7,763.46
4. Step 4: Simplify right side
   13,047.72x = 151,564,166.35
5. Step 5: Solve for x
   x = 151,564,166.35/13,047.72
6. Step 6: Final answer
   x = 11,616.14