Finding the Fourth Proportional to 109,726.10, 151,443.01 and 64,414.10

Step by Step Solution

1. Step 1: Write the proportion equation
   109,726.10 : 151,443.01 = 64,414.10 : x
2. Step 2: Convert to fraction form
   109,726.10/151,443.01 = 64,414.10/x
3. Step 3: Cross multiply
   109,726.10x = 151,443.01 × 64,414.10
4. Step 4: Simplify right side
   109,726.10x = 9,755,065,190.44
5. Step 5: Solve for x
   x = 9,755,065,190.44/109,726.10
6. Step 6: Final answer
   x = 88,903.78