Finding the Fourth Proportional to 42,837.28, 64,243.59 and 14,756.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,837.28 : 64,243.59 = 14,756.20 : x
2. Step 2: Convert to fraction form
   42,837.28/64,243.59 = 14,756.20/x
3. Step 3: Cross multiply
   42,837.28x = 64,243.59 × 14,756.20
4. Step 4: Simplify right side
   42,837.28x = 947,991,262.76
5. Step 5: Solve for x
   x = 947,991,262.76/42,837.28
6. Step 6: Final answer
   x = 22,130.05