Finding the Fourth Proportional to 31,188.51, 43,038.54 and 17,038.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,188.51 : 43,038.54 = 17,038.62 : x
2. Step 2: Convert to fraction form
   31,188.51/43,038.54 = 17,038.62/x
3. Step 3: Cross multiply
   31,188.51x = 43,038.54 × 17,038.62
4. Step 4: Simplify right side
   31,188.51x = 733,317,328.41
5. Step 5: Solve for x
   x = 733,317,328.41/31,188.51
6. Step 6: Final answer
   x = 23,512.42