Finding the Fourth Proportional to 111,432.72, 153,776.24 and 60,445.32

Step by Step Solution

1. Step 1: Write the proportion equation
   111,432.72 : 153,776.24 = 60,445.32 : x
2. Step 2: Convert to fraction form
   111,432.72/153,776.24 = 60,445.32/x
3. Step 3: Cross multiply
   111,432.72x = 153,776.24 × 60,445.32
4. Step 4: Simplify right side
   111,432.72x = 9,295,054,035.20
5. Step 5: Solve for x
   x = 9,295,054,035.20/111,432.72
6. Step 6: Final answer
   x = 83,414.05