Finding the Fourth Proportional to 146,780.02, 202,521.72 and 86,353.30

Step by Step Solution

1. Step 1: Write the proportion equation
   146,780.02 : 202,521.72 = 86,353.30 : x
2. Step 2: Convert to fraction form
   146,780.02/202,521.72 = 86,353.30/x
3. Step 3: Cross multiply
   146,780.02x = 202,521.72 × 86,353.30
4. Step 4: Simplify right side
   146,780.02x = 17,488,418,843.68
5. Step 5: Solve for x
   x = 17,488,418,843.68/146,780.02
6. Step 6: Final answer
   x = 119,147.13