Finding the Fourth Proportional to 89,106.86, 133,688.38 and 53,607

Step by Step Solution

1. Step 1: Write the proportion equation
   89,106.86 : 133,688.38 = 53,607 : x
2. Step 2: Convert to fraction form
   89,106.86/133,688.38 = 53,607/x
3. Step 3: Cross multiply
   89,106.86x = 133,688.38 × 53,607
4. Step 4: Simplify right side
   89,106.86x = 7,166,632,986.66
5. Step 5: Solve for x
   x = 7,166,632,986.66/89,106.86
6. Step 6: Final answer
   x = 80,427.40