Finding the Fourth Proportional to 37,659.63, 56,453.56 and 12,686.83

Step by Step Solution

1. Step 1: Write the proportion equation
   37,659.63 : 56,453.56 = 12,686.83 : x
2. Step 2: Convert to fraction form
   37,659.63/56,453.56 = 12,686.83/x
3. Step 3: Cross multiply
   37,659.63x = 56,453.56 × 12,686.83
4. Step 4: Simplify right side
   37,659.63x = 716,216,545.76
5. Step 5: Solve for x
   x = 716,216,545.76/37,659.63
6. Step 6: Final answer
   x = 19,018.15