Finding the Fourth Proportional to 113,427.67, 170,128.54 and 30,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   113,427.67 : 170,128.54 = 30,328.15 : x
2. Step 2: Convert to fraction form
   113,427.67/170,128.54 = 30,328.15/x
3. Step 3: Cross multiply
   113,427.67x = 170,128.54 × 30,328.15
4. Step 4: Simplify right side
   113,427.67x = 5,159,683,880.40
5. Step 5: Solve for x
   x = 5,159,683,880.40/113,427.67
6. Step 6: Final answer
   x = 45,488.76