Finding the Fourth Proportional to 9,910.42, 14,762.35 and 9,384.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,910.42 : 14,762.35 = 9,384.50 : x
2. Step 2: Convert to fraction form
   9,910.42/14,762.35 = 9,384.50/x
3. Step 3: Cross multiply
   9,910.42x = 14,762.35 × 9,384.50
4. Step 4: Simplify right side
   9,910.42x = 138,537,273.58
5. Step 5: Solve for x
   x = 138,537,273.58/9,910.42
6. Step 6: Final answer
   x = 13,978.95