Finding the Fourth Proportional to 60,803.26, 90,593.33 and 57,407.94

Step by Step Solution

1. Step 1: Write the proportion equation
   60,803.26 : 90,593.33 = 57,407.94 : x
2. Step 2: Convert to fraction form
   60,803.26/90,593.33 = 57,407.94/x
3. Step 3: Cross multiply
   60,803.26x = 90,593.33 × 57,407.94
4. Step 4: Simplify right side
   60,803.26x = 5,200,776,488.92
5. Step 5: Solve for x
   x = 5,200,776,488.92/60,803.26
6. Step 6: Final answer
   x = 85,534.50