Finding the Fourth Proportional to 60,878.99, 83,856.87 and 42,942.56

Step by Step Solution

1. Step 1: Write the proportion equation
   60,878.99 : 83,856.87 = 42,942.56 : x
2. Step 2: Convert to fraction form
   60,878.99/83,856.87 = 42,942.56/x
3. Step 3: Cross multiply
   60,878.99x = 83,856.87 × 42,942.56
4. Step 4: Simplify right side
   60,878.99x = 3,601,028,252.10
5. Step 5: Solve for x
   x = 3,601,028,252.10/60,878.99
6. Step 6: Final answer
   x = 59,150.59