Finding the Fourth Proportional to 42,996.50, 64,494.74 and 28,202

Step by Step Solution

1. Step 1: Write the proportion equation
   42,996.50 : 64,494.74 = 28,202 : x
2. Step 2: Convert to fraction form
   42,996.50/64,494.74 = 28,202/x
3. Step 3: Cross multiply
   42,996.50x = 64,494.74 × 28,202
4. Step 4: Simplify right side
   42,996.50x = 1,818,880,657.48
5. Step 5: Solve for x
   x = 1,818,880,657.48/42,996.50
6. Step 6: Final answer
   x = 42,302.99