Finding the Fourth Proportional to 21,953.82, 32,854.17 and 17,958.90

Step by Step Solution

1. Step 1: Write the proportion equation
   21,953.82 : 32,854.17 = 17,958.90 : x
2. Step 2: Convert to fraction form
   21,953.82/32,854.17 = 17,958.90/x
3. Step 3: Cross multiply
   21,953.82x = 32,854.17 × 17,958.90
4. Step 4: Simplify right side
   21,953.82x = 590,024,753.61
5. Step 5: Solve for x
   x = 590,024,753.61/21,953.82
6. Step 6: Final answer
   x = 26,875.72