Finding the Fourth Proportional to 59,074.38, 81,532.89 and 56,417.22

Step by Step Solution

1. Step 1: Write the proportion equation
   59,074.38 : 81,532.89 = 56,417.22 : x
2. Step 2: Convert to fraction form
   59,074.38/81,532.89 = 56,417.22/x
3. Step 3: Cross multiply
   59,074.38x = 81,532.89 × 56,417.22
4. Step 4: Simplify right side
   59,074.38x = 4,599,858,992.37
5. Step 5: Solve for x
   x = 4,599,858,992.37/59,074.38
6. Step 6: Final answer
   x = 77,865.55