Finding the Fourth Proportional to 37,655.01, 56,443.11 and 12,686.43

Step by Step Solution

1. Step 1: Write the proportion equation
   37,655.01 : 56,443.11 = 12,686.43 : x
2. Step 2: Convert to fraction form
   37,655.01/56,443.11 = 12,686.43/x
3. Step 3: Cross multiply
   37,655.01x = 56,443.11 × 12,686.43
4. Step 4: Simplify right side
   37,655.01x = 716,061,564.00
5. Step 5: Solve for x
   x = 716,061,564.00/37,655.01
6. Step 6: Final answer
   x = 19,016.37