Finding the Fourth Proportional to 113,572.58, 170,229.72 and 69,101.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,572.58 : 170,229.72 = 69,101.34 : x
2. Step 2: Convert to fraction form
   113,572.58/170,229.72 = 69,101.34/x
3. Step 3: Cross multiply
   113,572.58x = 170,229.72 × 69,101.34
4. Step 4: Simplify right side
   113,572.58x = 11,763,101,759.82
5. Step 5: Solve for x
   x = 11,763,101,759.82/113,572.58
6. Step 6: Final answer
   x = 103,573.43