Finding the Fourth Proportional to 37,068.81, 51,158.61 and 21,155.64

Step by Step Solution

1. Step 1: Write the proportion equation
   37,068.81 : 51,158.61 = 21,155.64 : x
2. Step 2: Convert to fraction form
   37,068.81/51,158.61 = 21,155.64/x
3. Step 3: Cross multiply
   37,068.81x = 51,158.61 × 21,155.64
4. Step 4: Simplify right side
   37,068.81x = 1,082,292,880.27
5. Step 5: Solve for x
   x = 1,082,292,880.27/37,068.81
6. Step 6: Final answer
   x = 29,196.86