Finding the Fourth Proportional to 37,310.76, 55,980.72 and 13,939.02

Step by Step Solution

1. Step 1: Write the proportion equation
   37,310.76 : 55,980.72 = 13,939.02 : x
2. Step 2: Convert to fraction form
   37,310.76/55,980.72 = 13,939.02/x
3. Step 3: Cross multiply
   37,310.76x = 55,980.72 × 13,939.02
4. Step 4: Simplify right side
   37,310.76x = 780,316,375.69
5. Step 5: Solve for x
   x = 780,316,375.69/37,310.76
6. Step 6: Final answer
   x = 20,913.98