Finding the Fourth Proportional to 10,783.34, 14,848.35 and 9,207.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,783.34 : 14,848.35 = 9,207.98 : x
2. Step 2: Convert to fraction form
   10,783.34/14,848.35 = 9,207.98/x
3. Step 3: Cross multiply
   10,783.34x = 14,848.35 × 9,207.98
4. Step 4: Simplify right side
   10,783.34x = 136,723,309.83
5. Step 5: Solve for x
   x = 136,723,309.83/10,783.34
6. Step 6: Final answer
   x = 12,679.12