Finding the Fourth Proportional to 31,699.63, 47,557.34 and 9,513.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,699.63 : 47,557.34 = 9,513.42 : x
2. Step 2: Convert to fraction form
   31,699.63/47,557.34 = 9,513.42/x
3. Step 3: Cross multiply
   31,699.63x = 47,557.34 × 9,513.42
4. Step 4: Simplify right side
   31,699.63x = 452,432,949.50
5. Step 5: Solve for x
   x = 452,432,949.50/31,699.63
6. Step 6: Final answer
   x = 14,272.50