Finding the Fourth Proportional to 13,847.50, 19,111.72 and 8,261.74

Step by Step Solution

1. Step 1: Write the proportion equation
   13,847.50 : 19,111.72 = 8,261.74 : x
2. Step 2: Convert to fraction form
   13,847.50/19,111.72 = 8,261.74/x
3. Step 3: Cross multiply
   13,847.50x = 19,111.72 × 8,261.74
4. Step 4: Simplify right side
   13,847.50x = 157,896,061.59
5. Step 5: Solve for x
   x = 157,896,061.59/13,847.50
6. Step 6: Final answer
   x = 11,402.50