Finding the Fourth Proportional to 91,628.01, 137,471.48 and 43,616.98

Step by Step Solution

1. Step 1: Write the proportion equation
   91,628.01 : 137,471.48 = 43,616.98 : x
2. Step 2: Convert to fraction form
   91,628.01/137,471.48 = 43,616.98/x
3. Step 3: Cross multiply
   91,628.01x = 137,471.48 × 43,616.98
4. Step 4: Simplify right side
   91,628.01x = 5,996,090,911.05
5. Step 5: Solve for x
   x = 5,996,090,911.05/91,628.01
6. Step 6: Final answer
   x = 65,439.50