Finding the Fourth Proportional to 34,945.40, 48,214.12 and 31,577.40

Step by Step Solution

1. Step 1: Write the proportion equation
   34,945.40 : 48,214.12 = 31,577.40 : x
2. Step 2: Convert to fraction form
   34,945.40/48,214.12 = 31,577.40/x
3. Step 3: Cross multiply
   34,945.40x = 48,214.12 × 31,577.40
4. Step 4: Simplify right side
   34,945.40x = 1,522,476,552.89
5. Step 5: Solve for x
   x = 1,522,476,552.89/34,945.40
6. Step 6: Final answer
   x = 43,567.30