Finding the Fourth Proportional to 91,216.17, 136,789.38 and 43,818.08

Step by Step Solution

1. Step 1: Write the proportion equation
   91,216.17 : 136,789.38 = 43,818.08 : x
2. Step 2: Convert to fraction form
   91,216.17/136,789.38 = 43,818.08/x
3. Step 3: Cross multiply
   91,216.17x = 136,789.38 × 43,818.08
4. Step 4: Simplify right side
   91,216.17x = 5,993,847,312.04
5. Step 5: Solve for x
   x = 5,993,847,312.04/91,216.17
6. Step 6: Final answer
   x = 65,710.36