Finding the Fourth Proportional to 12,118,375.94, 18,161,858.50 and 4,921,549.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,118,375.94 : 18,161,858.50 = 4,921,549.42 : x
2. Step 2: Convert to fraction form
   12,118,375.94/18,161,858.50 = 4,921,549.42/x
3. Step 3: Cross multiply
   12,118,375.94x = 18,161,858.50 × 4,921,549.42
4. Step 4: Simplify right side
   12,118,375.94x = 89,384,484,166,797.06
5. Step 5: Solve for x
   x = 89,384,484,166,797.06/12,118,375.94
6. Step 6: Final answer
   x = 7,375,945.80