Finding the Fourth Proportional to 31,527.63, 47,300.76 and 12,804.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,527.63 : 47,300.76 = 12,804.08 : x
2. Step 2: Convert to fraction form
   31,527.63/47,300.76 = 12,804.08/x
3. Step 3: Cross multiply
   31,527.63x = 47,300.76 × 12,804.08
4. Step 4: Simplify right side
   31,527.63x = 605,642,478.60
5. Step 5: Solve for x
   x = 605,642,478.60/31,527.63
6. Step 6: Final answer
   x = 19,209.90