Finding the Fourth Proportional to 31,468.73, 47,186.83 and 9,279.28

Step by Step Solution

1. Step 1: Write the proportion equation
   31,468.73 : 47,186.83 = 9,279.28 : x
2. Step 2: Convert to fraction form
   31,468.73/47,186.83 = 9,279.28/x
3. Step 3: Cross multiply
   31,468.73x = 47,186.83 × 9,279.28
4. Step 4: Simplify right side
   31,468.73x = 437,859,666.72
5. Step 5: Solve for x
   x = 437,859,666.72/31,468.73
6. Step 6: Final answer
   x = 13,914.12