Finding the Fourth Proportional to 87,933.89, 131,899.68 and 21,373.82

Step by Step Solution

1. Step 1: Write the proportion equation
   87,933.89 : 131,899.68 = 21,373.82 : x
2. Step 2: Convert to fraction form
   87,933.89/131,899.68 = 21,373.82/x
3. Step 3: Cross multiply
   87,933.89x = 131,899.68 × 21,373.82
4. Step 4: Simplify right side
   87,933.89x = 2,819,200,348.13
5. Step 5: Solve for x
   x = 2,819,200,348.13/87,933.89
6. Step 6: Final answer
   x = 32,060.45