Finding the Fourth Proportional to 90,797.12, 136,119.12 and 43,385.42

Step by Step Solution

1. Step 1: Write the proportion equation
   90,797.12 : 136,119.12 = 43,385.42 : x
2. Step 2: Convert to fraction form
   90,797.12/136,119.12 = 43,385.42/x
3. Step 3: Cross multiply
   90,797.12x = 136,119.12 × 43,385.42
4. Step 4: Simplify right side
   90,797.12x = 5,905,585,191.23
5. Step 5: Solve for x
   x = 5,905,585,191.23/90,797.12
6. Step 6: Final answer
   x = 65,041.55