Finding the Fourth Proportional to 33,320.58, 45,981.16 and 18,213.12

Step by Step Solution

1. Step 1: Write the proportion equation
   33,320.58 : 45,981.16 = 18,213.12 : x
2. Step 2: Convert to fraction form
   33,320.58/45,981.16 = 18,213.12/x
3. Step 3: Cross multiply
   33,320.58x = 45,981.16 × 18,213.12
4. Step 4: Simplify right side
   33,320.58x = 837,460,384.82
5. Step 5: Solve for x
   x = 837,460,384.82/33,320.58
6. Step 6: Final answer
   x = 25,133.43