Finding the Fourth Proportional to 59,292, 81,842.40 and 42,573.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,292 : 81,842.40 = 42,573.60 : x
2. Step 2: Convert to fraction form
   59,292/81,842.40 = 42,573.60/x
3. Step 3: Cross multiply
   59,292x = 81,842.40 × 42,573.60
4. Step 4: Simplify right side
   59,292x = 3,484,325,600.64
5. Step 5: Solve for x
   x = 3,484,325,600.64/59,292
6. Step 6: Final answer
   x = 58,765.53