Finding the Fourth Proportional to 37,085.15, 55,569.38 and 28,672.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,085.15 : 55,569.38 = 28,672.21 : x
2. Step 2: Convert to fraction form
   37,085.15/55,569.38 = 28,672.21/x
3. Step 3: Cross multiply
   37,085.15x = 55,569.38 × 28,672.21
4. Step 4: Simplify right side
   37,085.15x = 1,593,296,511.72
5. Step 5: Solve for x
   x = 1,593,296,511.72/37,085.15
6. Step 6: Final answer
   x = 42,963.19