Finding the Fourth Proportional to 45,061, 67,546.14 and 18,780.28

Step by Step Solution

1. Step 1: Write the proportion equation
   45,061 : 67,546.14 = 18,780.28 : x
2. Step 2: Convert to fraction form
   45,061/67,546.14 = 18,780.28/x
3. Step 3: Cross multiply
   45,061x = 67,546.14 × 18,780.28
4. Step 4: Simplify right side
   45,061x = 1,268,535,422.12
5. Step 5: Solve for x
   x = 1,268,535,422.12/45,061
6. Step 6: Final answer
   x = 28,151.52