Finding the Fourth Proportional to 60,043.08, 90,064.48 and 56,389.42

Step by Step Solution

1. Step 1: Write the proportion equation
   60,043.08 : 90,064.48 = 56,389.42 : x
2. Step 2: Convert to fraction form
   60,043.08/90,064.48 = 56,389.42/x
3. Step 3: Cross multiply
   60,043.08x = 90,064.48 × 56,389.42
4. Step 4: Simplify right side
   60,043.08x = 5,078,683,789.80
5. Step 5: Solve for x
   x = 5,078,683,789.80/60,043.08
6. Step 6: Final answer
   x = 84,584.00