Finding the Fourth Proportional to 13,056.80, 19,551.98 and 7,207

Step by Step Solution

1. Step 1: Write the proportion equation
   13,056.80 : 19,551.98 = 7,207 : x
2. Step 2: Convert to fraction form
   13,056.80/19,551.98 = 7,207/x
3. Step 3: Cross multiply
   13,056.80x = 19,551.98 × 7,207
4. Step 4: Simplify right side
   13,056.80x = 140,911,119.86
5. Step 5: Solve for x
   x = 140,911,119.86/13,056.80
6. Step 6: Final answer
   x = 10,792.16