Finding the Fourth Proportional to 91,458.01, 137,158.46 and 54,008.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,458.01 : 137,158.46 = 54,008.06 : x
2. Step 2: Convert to fraction form
   91,458.01/137,158.46 = 54,008.06/x
3. Step 3: Cross multiply
   91,458.01x = 137,158.46 × 54,008.06
4. Step 4: Simplify right side
   91,458.01x = 7,407,662,067.15
5. Step 5: Solve for x
   x = 7,407,662,067.15/91,458.01
6. Step 6: Final answer
   x = 80,995.23