Finding the Fourth Proportional to 45,320.60, 68,111.94 and 42,170.84

Step by Step Solution

1. Step 1: Write the proportion equation
   45,320.60 : 68,111.94 = 42,170.84 : x
2. Step 2: Convert to fraction form
   45,320.60/68,111.94 = 42,170.84/x
3. Step 3: Cross multiply
   45,320.60x = 68,111.94 × 42,170.84
4. Step 4: Simplify right side
   45,320.60x = 2,872,337,723.83
5. Step 5: Solve for x
   x = 2,872,337,723.83/45,320.60
6. Step 6: Final answer
   x = 63,378.19