Finding the Fourth Proportional to 31,763.39, 47,632.56 and 13,994.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,763.39 : 47,632.56 = 13,994.81 : x
2. Step 2: Convert to fraction form
   31,763.39/47,632.56 = 13,994.81/x
3. Step 3: Cross multiply
   31,763.39x = 47,632.56 × 13,994.81
4. Step 4: Simplify right side
   31,763.39x = 666,608,627.01
5. Step 5: Solve for x
   x = 666,608,627.01/31,763.39
6. Step 6: Final answer
   x = 20,986.70