Finding the Fourth Proportional to 31,238.49, 43,109.06 and 17,091.35

Step by Step Solution

1. Step 1: Write the proportion equation
   31,238.49 : 43,109.06 = 17,091.35 : x
2. Step 2: Convert to fraction form
   31,238.49/43,109.06 = 17,091.35/x
3. Step 3: Cross multiply
   31,238.49x = 43,109.06 × 17,091.35
4. Step 4: Simplify right side
   31,238.49x = 736,791,731.63
5. Step 5: Solve for x
   x = 736,791,731.63/31,238.49
6. Step 6: Final answer
   x = 23,586.02