Finding the Fourth Proportional to 45,196.02, 67,816.71 and 18,900.18

Step by Step Solution

1. Step 1: Write the proportion equation
   45,196.02 : 67,816.71 = 18,900.18 : x
2. Step 2: Convert to fraction form
   45,196.02/67,816.71 = 18,900.18/x
3. Step 3: Cross multiply
   45,196.02x = 67,816.71 × 18,900.18
4. Step 4: Simplify right side
   45,196.02x = 1,281,748,026.01
5. Step 5: Solve for x
   x = 1,281,748,026.01/45,196.02
6. Step 6: Final answer
   x = 28,359.75