Finding the Fourth Proportional to 31,719.42, 47,566.17 and 10,938.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,719.42 : 47,566.17 = 10,938.06 : x
2. Step 2: Convert to fraction form
   31,719.42/47,566.17 = 10,938.06/x
3. Step 3: Cross multiply
   31,719.42x = 47,566.17 × 10,938.06
4. Step 4: Simplify right side
   31,719.42x = 520,281,621.43
5. Step 5: Solve for x
   x = 520,281,621.43/31,719.42
6. Step 6: Final answer
   x = 16,402.62