Finding the Fourth Proportional to 103,647.35, 155,470.46 and 89,564.55

Step by Step Solution

1. Step 1: Write the proportion equation
   103,647.35 : 155,470.46 = 89,564.55 : x
2. Step 2: Convert to fraction form
   103,647.35/155,470.46 = 89,564.55/x
3. Step 3: Cross multiply
   103,647.35x = 155,470.46 × 89,564.55
4. Step 4: Simplify right side
   103,647.35x = 13,924,641,340.37
5. Step 5: Solve for x
   x = 13,924,641,340.37/103,647.35
6. Step 6: Final answer
   x = 134,346.34