Finding the Fourth Proportional to 146,603.83, 219,815.02 and 99,714.55

Step by Step Solution

1. Step 1: Write the proportion equation
   146,603.83 : 219,815.02 = 99,714.55 : x
2. Step 2: Convert to fraction form
   146,603.83/219,815.02 = 99,714.55/x
3. Step 3: Cross multiply
   146,603.83x = 219,815.02 × 99,714.55
4. Step 4: Simplify right side
   146,603.83x = 21,918,755,802.54
5. Step 5: Solve for x
   x = 21,918,755,802.54/146,603.83
6. Step 6: Final answer
   x = 149,510.12