Finding the Fourth Proportional to 37,633.32, 56,448.72 and 12,672.90

Step by Step Solution

1. Step 1: Write the proportion equation
   37,633.32 : 56,448.72 = 12,672.90 : x
2. Step 2: Convert to fraction form
   37,633.32/56,448.72 = 12,672.90/x
3. Step 3: Cross multiply
   37,633.32x = 56,448.72 × 12,672.90
4. Step 4: Simplify right side
   37,633.32x = 715,368,983.69
5. Step 5: Solve for x
   x = 715,368,983.69/37,633.32
6. Step 6: Final answer
   x = 19,008.93