Finding the Fourth Proportional to 60,518.86, 83,457.39 and 40,376.56

Step by Step Solution

1. Step 1: Write the proportion equation
   60,518.86 : 83,457.39 = 40,376.56 : x
2. Step 2: Convert to fraction form
   60,518.86/83,457.39 = 40,376.56/x
3. Step 3: Cross multiply
   60,518.86x = 83,457.39 × 40,376.56
4. Step 4: Simplify right side
   60,518.86x = 3,369,722,314.78
5. Step 5: Solve for x
   x = 3,369,722,314.78/60,518.86
6. Step 6: Final answer
   x = 55,680.53