Finding the Fourth Proportional to 353,100.82, 529,437.99 and 142,492.72

Step by Step Solution

1. Step 1: Write the proportion equation
   353,100.82 : 529,437.99 = 142,492.72 : x
2. Step 2: Convert to fraction form
   353,100.82/529,437.99 = 142,492.72/x
3. Step 3: Cross multiply
   353,100.82x = 529,437.99 × 142,492.72
4. Step 4: Simplify right side
   353,100.82x = 75,441,059,266.43
5. Step 5: Solve for x
   x = 75,441,059,266.43/353,100.82
6. Step 6: Final answer
   x = 213,653.03