Finding the Fourth Proportional to 46,915.82, 70,377.16 and 13,186.82

Step by Step Solution

1. Step 1: Write the proportion equation
   46,915.82 : 70,377.16 = 13,186.82 : x
2. Step 2: Convert to fraction form
   46,915.82/70,377.16 = 13,186.82/x
3. Step 3: Cross multiply
   46,915.82x = 70,377.16 × 13,186.82
4. Step 4: Simplify right side
   46,915.82x = 928,050,556.18
5. Step 5: Solve for x
   x = 928,050,556.18/46,915.82
6. Step 6: Final answer
   x = 19,781.18