Finding the Fourth Proportional to 37,128, 55,700.76 and 12,504

Step by Step Solution

1. Step 1: Write the proportion equation
   37,128 : 55,700.76 = 12,504 : x
2. Step 2: Convert to fraction form
   37,128/55,700.76 = 12,504/x
3. Step 3: Cross multiply
   37,128x = 55,700.76 × 12,504
4. Step 4: Simplify right side
   37,128x = 696,482,303.04
5. Step 5: Solve for x
   x = 696,482,303.04/37,128
6. Step 6: Final answer
   x = 18,758.95