Finding the Fourth Proportional to 123,603.48, 185,404.86 and 106,913.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,603.48 : 185,404.86 = 106,913.88 : x
2. Step 2: Convert to fraction form
   123,603.48/185,404.86 = 106,913.88/x
3. Step 3: Cross multiply
   123,603.48x = 185,404.86 × 106,913.88
4. Step 4: Simplify right side
   123,603.48x = 19,822,352,953.46
5. Step 5: Solve for x
   x = 19,822,352,953.46/123,603.48
6. Step 6: Final answer
   x = 160,370.51