Finding the Fourth Proportional to 42,962.87, 64,423.47 and 25,199.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,962.87 : 64,423.47 = 25,199.34 : x
2. Step 2: Convert to fraction form
   42,962.87/64,423.47 = 25,199.34/x
3. Step 3: Cross multiply
   42,962.87x = 64,423.47 × 25,199.34
4. Step 4: Simplify right side
   42,962.87x = 1,623,428,777.42
5. Step 5: Solve for x
   x = 1,623,428,777.42/42,962.87
6. Step 6: Final answer
   x = 37,786.78