Finding the Fourth Proportional to 36,404.31, 54,591.32 and 12,706.79

Step by Step Solution

1. Step 1: Write the proportion equation
   36,404.31 : 54,591.32 = 12,706.79 : x
2. Step 2: Convert to fraction form
   36,404.31/54,591.32 = 12,706.79/x
3. Step 3: Cross multiply
   36,404.31x = 54,591.32 × 12,706.79
4. Step 4: Simplify right side
   36,404.31x = 693,680,607.31
5. Step 5: Solve for x
   x = 693,680,607.31/36,404.31
6. Step 6: Final answer
   x = 19,054.90