Finding the Fourth Proportional to 60,401.78, 90,534.31 and 30,756.99

Step by Step Solution

1. Step 1: Write the proportion equation
   60,401.78 : 90,534.31 = 30,756.99 : x
2. Step 2: Convert to fraction form
   60,401.78/90,534.31 = 30,756.99/x
3. Step 3: Cross multiply
   60,401.78x = 90,534.31 × 30,756.99
4. Step 4: Simplify right side
   60,401.78x = 2,784,563,129.94
5. Step 5: Solve for x
   x = 2,784,563,129.94/60,401.78
6. Step 6: Final answer
   x = 46,100.68