Finding the Fourth Proportional to 108,216.95, 162,355.37 and 45,066.78

Step by Step Solution

1. Step 1: Write the proportion equation
   108,216.95 : 162,355.37 = 45,066.78 : x
2. Step 2: Convert to fraction form
   108,216.95/162,355.37 = 45,066.78/x
3. Step 3: Cross multiply
   108,216.95x = 162,355.37 × 45,066.78
4. Step 4: Simplify right side
   108,216.95x = 7,316,833,516.27
5. Step 5: Solve for x
   x = 7,316,833,516.27/108,216.95
6. Step 6: Final answer
   x = 67,612.64