Finding the Fourth Proportional to 69,300.21, 103,868.82 and 31,305.14

Step by Step Solution

1. Step 1: Write the proportion equation
   69,300.21 : 103,868.82 = 31,305.14 : x
2. Step 2: Convert to fraction form
   69,300.21/103,868.82 = 31,305.14/x
3. Step 3: Cross multiply
   69,300.21x = 103,868.82 × 31,305.14
4. Step 4: Simplify right side
   69,300.21x = 3,251,627,432.39
5. Step 5: Solve for x
   x = 3,251,627,432.39/69,300.21
6. Step 6: Final answer
   x = 46,920.89