Finding the Fourth Proportional to 353,058.17, 529,582.59 and 86,820.98

Step by Step Solution

1. Step 1: Write the proportion equation
   353,058.17 : 529,582.59 = 86,820.98 : x
2. Step 2: Convert to fraction form
   353,058.17/529,582.59 = 86,820.98/x
3. Step 3: Cross multiply
   353,058.17x = 529,582.59 × 86,820.98
4. Step 4: Simplify right side
   353,058.17x = 45,978,876,806.83
5. Step 5: Solve for x
   x = 45,978,876,806.83/353,058.17
6. Step 6: Final answer
   x = 130,230.32