Finding the Fourth Proportional to 153,185.05, 211,388.53 and 88,644.04

Step by Step Solution

1. Step 1: Write the proportion equation
   153,185.05 : 211,388.53 = 88,644.04 : x
2. Step 2: Convert to fraction form
   153,185.05/211,388.53 = 88,644.04/x
3. Step 3: Cross multiply
   153,185.05x = 211,388.53 × 88,644.04
4. Step 4: Simplify right side
   153,185.05x = 18,738,333,308.86
5. Step 5: Solve for x
   x = 18,738,333,308.86/153,185.05
6. Step 6: Final answer
   x = 122,324.82