Finding the Fourth Proportional to 384,301.72, 529,905 and 248,156.92

Step by Step Solution

1. Step 1: Write the proportion equation
   384,301.72 : 529,905 = 248,156.92 : x
2. Step 2: Convert to fraction form
   384,301.72/529,905 = 248,156.92/x
3. Step 3: Cross multiply
   384,301.72x = 529,905 × 248,156.92
4. Step 4: Simplify right side
   384,301.72x = 131,499,592,692.60
5. Step 5: Solve for x
   x = 131,499,592,692.60/384,301.72
6. Step 6: Final answer
   x = 342,178.00