Finding the Fourth Proportional to 60,828.68, 91,271.90 and 42,137.48

Step by Step Solution

1. Step 1: Write the proportion equation
   60,828.68 : 91,271.90 = 42,137.48 : x
2. Step 2: Convert to fraction form
   60,828.68/91,271.90 = 42,137.48/x
3. Step 3: Cross multiply
   60,828.68x = 91,271.90 × 42,137.48
4. Step 4: Simplify right side
   60,828.68x = 3,845,967,860.81
5. Step 5: Solve for x
   x = 3,845,967,860.81/60,828.68
6. Step 6: Final answer
   x = 63,226.23