Finding the Fourth Proportional to 113,124.20, 169,483.89 and 75,570.57

Step by Step Solution

1. Step 1: Write the proportion equation
   113,124.20 : 169,483.89 = 75,570.57 : x
2. Step 2: Convert to fraction form
   113,124.20/169,483.89 = 75,570.57/x
3. Step 3: Cross multiply
   113,124.20x = 169,483.89 × 75,570.57
4. Step 4: Simplify right side
   113,124.20x = 12,807,994,456.51
5. Step 5: Solve for x
   x = 12,807,994,456.51/113,124.20
6. Step 6: Final answer
   x = 113,220.65