Finding the Fourth Proportional to 89,571.32, 133,941.72 and 69,351.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89,571.32 : 133,941.72 = 69,351.62 : x
2. Step 2: Convert to fraction form
   89,571.32/133,941.72 = 69,351.62/x
3. Step 3: Cross multiply
   89,571.32x = 133,941.72 × 69,351.62
4. Step 4: Simplify right side
   89,571.32x = 9,289,075,267.59
5. Step 5: Solve for x
   x = 9,289,075,267.59/89,571.32
6. Step 6: Final answer
   x = 103,705.92