Finding the Fourth Proportional to 83,880.30, 125,856.90 and 42,327.30

Step by Step Solution

1. Step 1: Write the proportion equation
   83,880.30 : 125,856.90 = 42,327.30 : x
2. Step 2: Convert to fraction form
   83,880.30/125,856.90 = 42,327.30/x
3. Step 3: Cross multiply
   83,880.30x = 125,856.90 × 42,327.30
4. Step 4: Simplify right side
   83,880.30x = 5,327,182,763.37
5. Step 5: Solve for x
   x = 5,327,182,763.37/83,880.30
6. Step 6: Final answer
   x = 63,509.34