Finding the Fourth Proportional to 477,855.60, 716,894.16 and 162,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   477,855.60 : 716,894.16 = 162,312.72 : x
2. Step 2: Convert to fraction form
   477,855.60/716,894.16 = 162,312.72/x
3. Step 3: Cross multiply
   477,855.60x = 716,894.16 × 162,312.72
4. Step 4: Simplify right side
   477,855.60x = 116,361,041,061.72
5. Step 5: Solve for x
   x = 116,361,041,061.72/477,855.60
6. Step 6: Final answer
   x = 243,506.70