Finding the Fourth Proportional to 115,301.61, 159,115.59 and 64,314.81

Step by Step Solution

1. Step 1: Write the proportion equation
   115,301.61 : 159,115.59 = 64,314.81 : x
2. Step 2: Convert to fraction form
   115,301.61/159,115.59 = 64,314.81/x
3. Step 3: Cross multiply
   115,301.61x = 159,115.59 × 64,314.81
4. Step 4: Simplify right side
   115,301.61x = 10,233,488,938.89
5. Step 5: Solve for x
   x = 10,233,488,938.89/115,301.61
6. Step 6: Final answer
   x = 88,754.09