Finding the Fourth Proportional to 37,880.69, 56,837.42 and 20,330.01

Step by Step Solution

1. Step 1: Write the proportion equation
   37,880.69 : 56,837.42 = 20,330.01 : x
2. Step 2: Convert to fraction form
   37,880.69/56,837.42 = 20,330.01/x
3. Step 3: Cross multiply
   37,880.69x = 56,837.42 × 20,330.01
4. Step 4: Simplify right side
   37,880.69x = 1,155,505,215.32
5. Step 5: Solve for x
   x = 1,155,505,215.32/37,880.69
6. Step 6: Final answer
   x = 30,503.81