Finding the Fourth Proportional to 89,978.76, 134,967.96 and 36,693

Step by Step Solution

1. Step 1: Write the proportion equation
   89,978.76 : 134,967.96 = 36,693 : x
2. Step 2: Convert to fraction form
   89,978.76/134,967.96 = 36,693/x
3. Step 3: Cross multiply
   89,978.76x = 134,967.96 × 36,693
4. Step 4: Simplify right side
   89,978.76x = 4,952,379,356.28
5. Step 5: Solve for x
   x = 4,952,379,356.28/89,978.76
6. Step 6: Final answer
   x = 55,039.43