Finding the Fourth Proportional to 111,590.72, 154,068 and 69,211.52

Step by Step Solution

1. Step 1: Write the proportion equation
   111,590.72 : 154,068 = 69,211.52 : x
2. Step 2: Convert to fraction form
   111,590.72/154,068 = 69,211.52/x
3. Step 3: Cross multiply
   111,590.72x = 154,068 × 69,211.52
4. Step 4: Simplify right side
   111,590.72x = 10,663,280,463.36
5. Step 5: Solve for x
   x = 10,663,280,463.36/111,590.72
6. Step 6: Final answer
   x = 95,557.05