Finding the Fourth Proportional to 42,421, 63,615.50 and 34,080.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,421 : 63,615.50 = 34,080.52 : x
2. Step 2: Convert to fraction form
   42,421/63,615.50 = 34,080.52/x
3. Step 3: Cross multiply
   42,421x = 63,615.50 × 34,080.52
4. Step 4: Simplify right side
   42,421x = 2,168,049,320.06
5. Step 5: Solve for x
   x = 2,168,049,320.06/42,421
6. Step 6: Final answer
   x = 51,107.93