Finding the Fourth Proportional to 109,505.78, 151,104.25 and 64,173.39

Step by Step Solution

1. Step 1: Write the proportion equation
   109,505.78 : 151,104.25 = 64,173.39 : x
2. Step 2: Convert to fraction form
   109,505.78/151,104.25 = 64,173.39/x
3. Step 3: Cross multiply
   109,505.78x = 151,104.25 × 64,173.39
4. Step 4: Simplify right side
   109,505.78x = 9,696,871,805.47
5. Step 5: Solve for x
   x = 9,696,871,805.47/109,505.78
6. Step 6: Final answer
   x = 88,551.23