Finding the Fourth Proportional to 37,068.72, 51,155.16 and 21,153

Step by Step Solution

1. Step 1: Write the proportion equation
   37,068.72 : 51,155.16 = 21,153 : x
2. Step 2: Convert to fraction form
   37,068.72/51,155.16 = 21,153/x
3. Step 3: Cross multiply
   37,068.72x = 51,155.16 × 21,153
4. Step 4: Simplify right side
   37,068.72x = 1,082,085,099.48
5. Step 5: Solve for x
   x = 1,082,085,099.48/37,068.72
6. Step 6: Final answer
   x = 29,191.33