Finding the Fourth Proportional to 59,623.80, 89,438.42 and 42,171.56

Step by Step Solution

1. Step 1: Write the proportion equation
   59,623.80 : 89,438.42 = 42,171.56 : x
2. Step 2: Convert to fraction form
   59,623.80/89,438.42 = 42,171.56/x
3. Step 3: Cross multiply
   59,623.80x = 89,438.42 × 42,171.56
4. Step 4: Simplify right side
   59,623.80x = 3,771,757,695.34
5. Step 5: Solve for x
   x = 3,771,757,695.34/59,623.80
6. Step 6: Final answer
   x = 63,259.26