Finding the Fourth Proportional to 90,593.91, 135,280.80 and 73,986.89

Step by Step Solution

1. Step 1: Write the proportion equation
   90,593.91 : 135,280.80 = 73,986.89 : x
2. Step 2: Convert to fraction form
   90,593.91/135,280.80 = 73,986.89/x
3. Step 3: Cross multiply
   90,593.91x = 135,280.80 × 73,986.89
4. Step 4: Simplify right side
   90,593.91x = 10,009,004,992.31
5. Step 5: Solve for x
   x = 10,009,004,992.31/90,593.91
6. Step 6: Final answer
   x = 110,482.10