Finding the Fourth Proportional to 110,241.41, 152,128.73 and 64,921.30

Step by Step Solution

1. Step 1: Write the proportion equation
   110,241.41 : 152,128.73 = 64,921.30 : x
2. Step 2: Convert to fraction form
   110,241.41/152,128.73 = 64,921.30/x
3. Step 3: Cross multiply
   110,241.41x = 152,128.73 × 64,921.30
4. Step 4: Simplify right side
   110,241.41x = 9,876,394,918.95
5. Step 5: Solve for x
   x = 9,876,394,918.95/110,241.41
6. Step 6: Final answer
   x = 89,588.79