Finding the Fourth Proportional to 54,172.35, 74,752.61 and 31,510.17

Step by Step Solution

1. Step 1: Write the proportion equation
   54,172.35 : 74,752.61 = 31,510.17 : x
2. Step 2: Convert to fraction form
   54,172.35/74,752.61 = 31,510.17/x
3. Step 3: Cross multiply
   54,172.35x = 74,752.61 × 31,510.17
4. Step 4: Simplify right side
   54,172.35x = 2,355,467,291.49
5. Step 5: Solve for x
   x = 2,355,467,291.49/54,172.35
6. Step 6: Final answer
   x = 43,480.99