Finding the Fourth Proportional to 10,783.59, 14,888.73 and 8,261.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,783.59 : 14,888.73 = 8,261.25 : x
2. Step 2: Convert to fraction form
   10,783.59/14,888.73 = 8,261.25/x
3. Step 3: Cross multiply
   10,783.59x = 14,888.73 × 8,261.25
4. Step 4: Simplify right side
   10,783.59x = 122,999,520.71
5. Step 5: Solve for x
   x = 122,999,520.71/10,783.59
6. Step 6: Final answer
   x = 11,406.18