Finding the Fourth Proportional to 115,188.83, 158,941.31 and 64,190.38

Step by Step Solution

1. Step 1: Write the proportion equation
   115,188.83 : 158,941.31 = 64,190.38 : x
2. Step 2: Convert to fraction form
   115,188.83/158,941.31 = 64,190.38/x
3. Step 3: Cross multiply
   115,188.83x = 158,941.31 × 64,190.38
4. Step 4: Simplify right side
   115,188.83x = 10,202,503,445.75
5. Step 5: Solve for x
   x = 10,202,503,445.75/115,188.83
6. Step 6: Final answer
   x = 88,571.99