Finding the Fourth Proportional to 12,146,061.60, 18,219,286.80 and 3,170,613.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146,061.60 : 18,219,286.80 = 3,170,613.60 : x
2. Step 2: Convert to fraction form
   12,146,061.60/18,219,286.80 = 3,170,613.60/x
3. Step 3: Cross multiply
   12,146,061.60x = 18,219,286.80 × 3,170,613.60
4. Step 4: Simplify right side
   12,146,061.60x = 57,766,318,510,380.48
5. Step 5: Solve for x
   x = 57,766,318,510,380.48/12,146,061.60
6. Step 6: Final answer
   x = 4,755,971.15