Finding the Fourth Proportional to 115,827.30, 159,830.01 and 64,836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   115,827.30 : 159,830.01 = 64,836.72 : x
2. Step 2: Convert to fraction form
   115,827.30/159,830.01 = 64,836.72/x
3. Step 3: Cross multiply
   115,827.30x = 159,830.01 × 64,836.72
4. Step 4: Simplify right side
   115,827.30x = 10,362,853,605.97
5. Step 5: Solve for x
   x = 10,362,853,605.97/115,827.30
6. Step 6: Final answer
   x = 89,468.14