Finding the Fourth Proportional to 31,516.31, 43,493.42 and 17,370.07

Step by Step Solution

1. Step 1: Write the proportion equation
   31,516.31 : 43,493.42 = 17,370.07 : x
2. Step 2: Convert to fraction form
   31,516.31/43,493.42 = 17,370.07/x
3. Step 3: Cross multiply
   31,516.31x = 43,493.42 × 17,370.07
4. Step 4: Simplify right side
   31,516.31x = 755,483,684.63
5. Step 5: Solve for x
   x = 755,483,684.63/31,516.31
6. Step 6: Final answer
   x = 23,971.20