Finding the Fourth Proportional to 31,985.02, 44,147.24 and 21,792.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,985.02 : 44,147.24 = 21,792.91 : x
2. Step 2: Convert to fraction form
   31,985.02/44,147.24 = 21,792.91/x
3. Step 3: Cross multiply
   31,985.02x = 44,147.24 × 21,792.91
4. Step 4: Simplify right side
   31,985.02x = 962,096,498.37
5. Step 5: Solve for x
   x = 962,096,498.37/31,985.02
6. Step 6: Final answer
   x = 30,079.60