Finding the Fourth Proportional to 31,663.83, 43,698.11 and 21,046.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,663.83 : 43,698.11 = 21,046.35 : x
2. Step 2: Convert to fraction form
   31,663.83/43,698.11 = 21,046.35/x
3. Step 3: Cross multiply
   31,663.83x = 43,698.11 × 21,046.35
4. Step 4: Simplify right side
   31,663.83x = 919,685,612.17
5. Step 5: Solve for x
   x = 919,685,612.17/31,663.83
6. Step 6: Final answer
   x = 29,045.31