Finding the Fourth Proportional to 49,459.61, 68,216.59 and 42,572.50

Step by Step Solution

1. Step 1: Write the proportion equation
   49,459.61 : 68,216.59 = 42,572.50 : x
2. Step 2: Convert to fraction form
   49,459.61/68,216.59 = 42,572.50/x
3. Step 3: Cross multiply
   49,459.61x = 68,216.59 × 42,572.50
4. Step 4: Simplify right side
   49,459.61x = 2,904,150,223.83
5. Step 5: Solve for x
   x = 2,904,150,223.83/49,459.61
6. Step 6: Final answer
   x = 58,717.62