Finding the Fourth Proportional to 109,791.30, 164,688.76 and 30,907.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,791.30 : 164,688.76 = 30,907.42 : x
2. Step 2: Convert to fraction form
   109,791.30/164,688.76 = 30,907.42/x
3. Step 3: Cross multiply
   109,791.30x = 164,688.76 × 30,907.42
4. Step 4: Simplify right side
   109,791.30x = 5,090,104,674.60
5. Step 5: Solve for x
   x = 5,090,104,674.60/109,791.30
6. Step 6: Final answer
   x = 46,361.64