Finding the Fourth Proportional to 110,019.78, 151,786.17 and 64,700.10

Step by Step Solution

1. Step 1: Write the proportion equation
   110,019.78 : 151,786.17 = 64,700.10 : x
2. Step 2: Convert to fraction form
   110,019.78/151,786.17 = 64,700.10/x
3. Step 3: Cross multiply
   110,019.78x = 151,786.17 × 64,700.10
4. Step 4: Simplify right side
   110,019.78x = 9,820,580,377.62
5. Step 5: Solve for x
   x = 9,820,580,377.62/110,019.78
6. Step 6: Final answer
   x = 89,261.95