Finding the Fourth Proportional to 12,269,940.60, 18,404,738.10 and 5,538,343.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,269,940.60 : 18,404,738.10 = 5,538,343.80 : x
2. Step 2: Convert to fraction form
   12,269,940.60/18,404,738.10 = 5,538,343.80/x
3. Step 3: Cross multiply
   12,269,940.60x = 18,404,738.10 × 5,538,343.80
4. Step 4: Simplify right side
   12,269,940.60x = 101,931,767,146,758.78
5. Step 5: Solve for x
   x = 101,931,767,146,758.78/12,269,940.60
6. Step 6: Final answer
   x = 8,307,437.70