Finding the Fourth Proportional to 9,971.47, 14,947.62 and 3,729.79

Step by Step Solution

1. Step 1: Write the proportion equation
   9,971.47 : 14,947.62 = 3,729.79 : x
2. Step 2: Convert to fraction form
   9,971.47/14,947.62 = 3,729.79/x
3. Step 3: Cross multiply
   9,971.47x = 14,947.62 × 3,729.79
4. Step 4: Simplify right side
   9,971.47x = 55,751,483.60
5. Step 5: Solve for x
   x = 55,751,483.60/9,971.47
6. Step 6: Final answer
   x = 5,591.10