Finding the Fourth Proportional to 90,062.01, 134,433.54 and 79,421.55

Step by Step Solution

1. Step 1: Write the proportion equation
   90,062.01 : 134,433.54 = 79,421.55 : x
2. Step 2: Convert to fraction form
   90,062.01/134,433.54 = 79,421.55/x
3. Step 3: Cross multiply
   90,062.01x = 134,433.54 × 79,421.55
4. Step 4: Simplify right side
   90,062.01x = 10,676,920,118.79
5. Step 5: Solve for x
   x = 10,676,920,118.79/90,062.01
6. Step 6: Final answer
   x = 118,550.76