Finding the Fourth Proportional to 37,128.09, 55,704.89 and 10,836.70

Step by Step Solution

1. Step 1: Write the proportion equation
   37,128.09 : 55,704.89 = 10,836.70 : x
2. Step 2: Convert to fraction form
   37,128.09/55,704.89 = 10,836.70/x
3. Step 3: Cross multiply
   37,128.09x = 55,704.89 × 10,836.70
4. Step 4: Simplify right side
   37,128.09x = 603,657,181.46
5. Step 5: Solve for x
   x = 603,657,181.46/37,128.09
6. Step 6: Final answer
   x = 16,258.77