Finding the Fourth Proportional to 49,994.08, 69,005.52 and 31,120

Step by Step Solution

1. Step 1: Write the proportion equation
   49,994.08 : 69,005.52 = 31,120 : x
2. Step 2: Convert to fraction form
   49,994.08/69,005.52 = 31,120/x
3. Step 3: Cross multiply
   49,994.08x = 69,005.52 × 31,120
4. Step 4: Simplify right side
   49,994.08x = 2,147,451,782.40
5. Step 5: Solve for x
   x = 2,147,451,782.40/49,994.08
6. Step 6: Final answer
   x = 42,954.12