Finding the Fourth Proportional to 238,298.34, 357,498.94 and 80,523.30

Step by Step Solution

1. Step 1: Write the proportion equation
   238,298.34 : 357,498.94 = 80,523.30 : x
2. Step 2: Convert to fraction form
   238,298.34/357,498.94 = 80,523.30/x
3. Step 3: Cross multiply
   238,298.34x = 357,498.94 × 80,523.30
4. Step 4: Simplify right side
   238,298.34x = 28,786,994,395.30
5. Step 5: Solve for x
   x = 28,786,994,395.30/238,298.34
6. Step 6: Final answer
   x = 120,802.33