Finding the Fourth Proportional to 21,302.00, 31,941.77 and 11,312.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,302.00 : 31,941.77 = 11,312.34 : x
2. Step 2: Convert to fraction form
   21,302.00/31,941.77 = 11,312.34/x
3. Step 3: Cross multiply
   21,302.00x = 31,941.77 × 11,312.34
4. Step 4: Simplify right side
   21,302.00x = 361,336,105.88
5. Step 5: Solve for x
   x = 361,336,105.88/21,302.00
6. Step 6: Final answer
   x = 16,962.55