Finding the Fourth Proportional to 42,266.76, 63,306.69 and 28,908.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,266.76 : 63,306.69 = 28,908.09 : x
2. Step 2: Convert to fraction form
   42,266.76/63,306.69 = 28,908.09/x
3. Step 3: Cross multiply
   42,266.76x = 63,306.69 × 28,908.09
4. Step 4: Simplify right side
   42,266.76x = 1,830,075,465.02
5. Step 5: Solve for x
   x = 1,830,075,465.02/42,266.76
6. Step 6: Final answer
   x = 43,298.22