Finding the Fourth Proportional to 108,809.61, 163,182.83 and 45,628.10

Step by Step Solution

1. Step 1: Write the proportion equation
   108,809.61 : 163,182.83 = 45,628.10 : x
2. Step 2: Convert to fraction form
   108,809.61/163,182.83 = 45,628.10/x
3. Step 3: Cross multiply
   108,809.61x = 163,182.83 × 45,628.10
4. Step 4: Simplify right side
   108,809.61x = 7,445,721,441.47
5. Step 5: Solve for x
   x = 7,445,721,441.47/108,809.61
6. Step 6: Final answer
   x = 68,428.90