Finding the Fourth Proportional to 115,037.30, 158,751.15 and 64,736.30

Step by Step Solution

1. Step 1: Write the proportion equation
   115,037.30 : 158,751.15 = 64,736.30 : x
2. Step 2: Convert to fraction form
   115,037.30/158,751.15 = 64,736.30/x
3. Step 3: Cross multiply
   115,037.30x = 158,751.15 × 64,736.30
4. Step 4: Simplify right side
   115,037.30x = 10,276,962,071.75
5. Step 5: Solve for x
   x = 10,276,962,071.75/115,037.30
6. Step 6: Final answer
   x = 89,335.91