Finding the Fourth Proportional to 107,038.53, 160,262.55 and 80,663.31

Step by Step Solution

1. Step 1: Write the proportion equation
   107,038.53 : 160,262.55 = 80,663.31 : x
2. Step 2: Convert to fraction form
   107,038.53/160,262.55 = 80,663.31/x
3. Step 3: Cross multiply
   107,038.53x = 160,262.55 × 80,663.31
4. Step 4: Simplify right side
   107,038.53x = 12,927,307,752.04
5. Step 5: Solve for x
   x = 12,927,307,752.04/107,038.53
6. Step 6: Final answer
   x = 120,772.47