Finding the Fourth Proportional to 31,601.61, 47,417.00 and 15,806.00

Step by Step Solution

1. Step 1: Write the proportion equation
   31,601.61 : 47,417.00 = 15,806.00 : x
2. Step 2: Convert to fraction form
   31,601.61/47,417.00 = 15,806.00/x
3. Step 3: Cross multiply
   31,601.61x = 47,417.00 × 15,806.00
4. Step 4: Simplify right side
   31,601.61x = 749,473,141.51
5. Step 5: Solve for x
   x = 749,473,141.51/31,601.61
6. Step 6: Final answer
   x = 23,716.30