Finding the Fourth Proportional to 115,106.32, 158,810.17 and 64,795.60

Step by Step Solution

1. Step 1: Write the proportion equation
   115,106.32 : 158,810.17 = 64,795.60 : x
2. Step 2: Convert to fraction form
   115,106.32/158,810.17 = 64,795.60/x
3. Step 3: Cross multiply
   115,106.32x = 158,810.17 × 64,795.60
4. Step 4: Simplify right side
   115,106.32x = 10,290,199,133.22
5. Step 5: Solve for x
   x = 10,290,199,133.22/115,106.32
6. Step 6: Final answer
   x = 89,397.35