Finding the Fourth Proportional to 40,089.01, 55,286.28 and 34,421.98

Step by Step Solution

1. Step 1: Write the proportion equation
   40,089.01 : 55,286.28 = 34,421.98 : x
2. Step 2: Convert to fraction form
   40,089.01/55,286.28 = 34,421.98/x
3. Step 3: Cross multiply
   40,089.01x = 55,286.28 × 34,421.98
4. Step 4: Simplify right side
   40,089.01x = 1,903,062,775.89
5. Step 5: Solve for x
   x = 1,903,062,775.89/40,089.01
6. Step 6: Final answer
   x = 47,470.94