Finding the Fourth Proportional to 13,132.71, 19,706.56 and 4,811.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,132.71 : 19,706.56 = 4,811.63 : x
2. Step 2: Convert to fraction form
   13,132.71/19,706.56 = 4,811.63/x
3. Step 3: Cross multiply
   13,132.71x = 19,706.56 × 4,811.63
4. Step 4: Simplify right side
   13,132.71x = 94,820,564.73
5. Step 5: Solve for x
   x = 94,820,564.73/13,132.71
6. Step 6: Final answer
   x = 7,220.18