Finding the Fourth Proportional to 153,086.72, 229,416.24 and 74,180

Step by Step Solution

1. Step 1: Write the proportion equation
   153,086.72 : 229,416.24 = 74,180 : x
2. Step 2: Convert to fraction form
   153,086.72/229,416.24 = 74,180/x
3. Step 3: Cross multiply
   153,086.72x = 229,416.24 × 74,180
4. Step 4: Simplify right side
   153,086.72x = 17,018,096,683.20
5. Step 5: Solve for x
   x = 17,018,096,683.20/153,086.72
6. Step 6: Final answer
   x = 111,166.38