Finding the Fourth Proportional to 31,501.89, 47,252.91 and 21,611.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,501.89 : 47,252.91 = 21,611.18 : x
2. Step 2: Convert to fraction form
   31,501.89/47,252.91 = 21,611.18/x
3. Step 3: Cross multiply
   31,501.89x = 47,252.91 × 21,611.18
4. Step 4: Simplify right side
   31,501.89x = 1,021,191,143.53
5. Step 5: Solve for x
   x = 1,021,191,143.53/31,501.89
6. Step 6: Final answer
   x = 32,416.82