Finding the Fourth Proportional to 37,956, 52,379.52 and 21,189.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,956 : 52,379.52 = 21,189.12 : x
2. Step 2: Convert to fraction form
   37,956/52,379.52 = 21,189.12/x
3. Step 3: Cross multiply
   37,956x = 52,379.52 × 21,189.12
4. Step 4: Simplify right side
   37,956x = 1,109,875,934.82
5. Step 5: Solve for x
   x = 1,109,875,934.82/37,956
6. Step 6: Final answer
   x = 29,241.12