Finding the Fourth Proportional to 37,641.72, 56,464.98 and 9,939

Step by Step Solution

1. Step 1: Write the proportion equation
   37,641.72 : 56,464.98 = 9,939 : x
2. Step 2: Convert to fraction form
   37,641.72/56,464.98 = 9,939/x
3. Step 3: Cross multiply
   37,641.72x = 56,464.98 × 9,939
4. Step 4: Simplify right side
   37,641.72x = 561,205,436.22
5. Step 5: Solve for x
   x = 561,205,436.22/37,641.72
6. Step 6: Final answer
   x = 14,909.13