Finding the Fourth Proportional to 55,426.01, 83,140.79 and 21,690.69

Step by Step Solution

1. Step 1: Write the proportion equation
   55,426.01 : 83,140.79 = 21,690.69 : x
2. Step 2: Convert to fraction form
   55,426.01/83,140.79 = 21,690.69/x
3. Step 3: Cross multiply
   55,426.01x = 83,140.79 × 21,690.69
4. Step 4: Simplify right side
   55,426.01x = 1,803,380,993.79
5. Step 5: Solve for x
   x = 1,803,380,993.79/55,426.01
6. Step 6: Final answer
   x = 32,536.73