Finding the Fourth Proportional to 37,591.56, 56,385.32 and 12,631.80

Step by Step Solution

1. Step 1: Write the proportion equation
   37,591.56 : 56,385.32 = 12,631.80 : x
2. Step 2: Convert to fraction form
   37,591.56/56,385.32 = 12,631.80/x
3. Step 3: Cross multiply
   37,591.56x = 56,385.32 × 12,631.80
4. Step 4: Simplify right side
   37,591.56x = 712,248,085.18
5. Step 5: Solve for x
   x = 712,248,085.18/37,591.56
6. Step 6: Final answer
   x = 18,947.02