Finding the Fourth Proportional to 12,166,644.83, 18,243,421.20 and 4,876,446.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,166,644.83 : 18,243,421.20 = 4,876,446.18 : x
2. Step 2: Convert to fraction form
   12,166,644.83/18,243,421.20 = 4,876,446.18/x
3. Step 3: Cross multiply
   12,166,644.83x = 18,243,421.20 × 4,876,446.18
4. Step 4: Simplify right side
   12,166,644.83x = 88,963,061,620,871
5. Step 5: Solve for x
   x = 88,963,061,620,871/12,166,644.83
6. Step 6: Final answer
   x = 7,312,045.59