Finding the Fourth Proportional to 58,118, 87,189.96 and 21,182

Step by Step Solution

1. Step 1: Write the proportion equation
   58,118 : 87,189.96 = 21,182 : x
2. Step 2: Convert to fraction form
   58,118/87,189.96 = 21,182/x
3. Step 3: Cross multiply
   58,118x = 87,189.96 × 21,182
4. Step 4: Simplify right side
   58,118x = 1,846,857,732.72
5. Step 5: Solve for x
   x = 1,846,857,732.72/58,118
6. Step 6: Final answer
   x = 31,777.72