Finding the Fourth Proportional to 115,652.93, 159,601.31 and 64,667.51

Step by Step Solution

1. Step 1: Write the proportion equation
   115,652.93 : 159,601.31 = 64,667.51 : x
2. Step 2: Convert to fraction form
   115,652.93/159,601.31 = 64,667.51/x
3. Step 3: Cross multiply
   115,652.93x = 159,601.31 × 64,667.51
4. Step 4: Simplify right side
   115,652.93x = 10,321,018,987.10
5. Step 5: Solve for x
   x = 10,321,018,987.10/115,652.93
6. Step 6: Final answer
   x = 89,241.31