Finding the Fourth Proportional to 115,144.34, 158,896.79 and 64,156.86

Step by Step Solution

1. Step 1: Write the proportion equation
   115,144.34 : 158,896.79 = 64,156.86 : x
2. Step 2: Convert to fraction form
   115,144.34/158,896.79 = 64,156.86/x
3. Step 3: Cross multiply
   115,144.34x = 158,896.79 × 64,156.86
4. Step 4: Simplify right side
   115,144.34x = 10,194,319,030.28
5. Step 5: Solve for x
   x = 10,194,319,030.28/115,144.34
6. Step 6: Final answer
   x = 88,535.13