Finding the Fourth Proportional to 40,155.31, 55,412.47 and 22,005.94

Step by Step Solution

1. Step 1: Write the proportion equation
   40,155.31 : 55,412.47 = 22,005.94 : x
2. Step 2: Convert to fraction form
   40,155.31/55,412.47 = 22,005.94/x
3. Step 3: Cross multiply
   40,155.31x = 55,412.47 × 22,005.94
4. Step 4: Simplify right side
   40,155.31x = 1,219,403,490.07
5. Step 5: Solve for x
   x = 1,219,403,490.07/40,155.31
6. Step 6: Final answer
   x = 30,367.18