Finding the Fourth Proportional to 456,367.72, 684,405.98 and 156,776.06

Step by Step Solution

1. Step 1: Write the proportion equation
   456,367.72 : 684,405.98 = 156,776.06 : x
2. Step 2: Convert to fraction form
   456,367.72/684,405.98 = 156,776.06/x
3. Step 3: Cross multiply
   456,367.72x = 684,405.98 × 156,776.06
4. Step 4: Simplify right side
   456,367.72x = 107,298,472,984.84
5. Step 5: Solve for x
   x = 107,298,472,984.84/456,367.72
6. Step 6: Final answer
   x = 235,114.07