Finding the Fourth Proportional to 89,411, 133,912.32 and 42,696.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,411 : 133,912.32 = 42,696.68 : x
2. Step 2: Convert to fraction form
   89,411/133,912.32 = 42,696.68/x
3. Step 3: Cross multiply
   89,411x = 133,912.32 × 42,696.68
4. Step 4: Simplify right side
   89,411x = 5,717,611,475.10
5. Step 5: Solve for x
   x = 5,717,611,475.10/89,411
6. Step 6: Final answer
   x = 63,947.52