Finding the Fourth Proportional to 37,616.22, 56,427.12 and 12,656.16

Step by Step Solution

1. Step 1: Write the proportion equation
   37,616.22 : 56,427.12 = 12,656.16 : x
2. Step 2: Convert to fraction form
   37,616.22/56,427.12 = 12,656.16/x
3. Step 3: Cross multiply
   37,616.22x = 56,427.12 × 12,656.16
4. Step 4: Simplify right side
   37,616.22x = 714,150,659.06
5. Step 5: Solve for x
   x = 714,150,659.06/37,616.22
6. Step 6: Final answer
   x = 18,985.18