Finding the Fourth Proportional to 27,300.56, 37,671.72 and 15,368

Step by Step Solution

1. Step 1: Write the proportion equation
   27,300.56 : 37,671.72 = 15,368 : x
2. Step 2: Convert to fraction form
   27,300.56/37,671.72 = 15,368/x
3. Step 3: Cross multiply
   27,300.56x = 37,671.72 × 15,368
4. Step 4: Simplify right side
   27,300.56x = 578,938,992.96
5. Step 5: Solve for x
   x = 578,938,992.96/27,300.56
6. Step 6: Final answer
   x = 21,206.12