Finding the Fourth Proportional to 284,185.69, 392,176.28 and 156,861.32

Step by Step Solution

1. Step 1: Write the proportion equation
   284,185.69 : 392,176.28 = 156,861.32 : x
2. Step 2: Convert to fraction form
   284,185.69/392,176.28 = 156,861.32/x
3. Step 3: Cross multiply
   284,185.69x = 392,176.28 × 156,861.32
4. Step 4: Simplify right side
   284,185.69x = 61,517,287,384.76
5. Step 5: Solve for x
   x = 61,517,287,384.76/284,185.69
6. Step 6: Final answer
   x = 216,468.63