Finding the Fourth Proportional to 12,146,949.70, 18,199,429.35 and 7,884,924.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146,949.70 : 18,199,429.35 = 7,884,924.10 : x
2. Step 2: Convert to fraction form
   12,146,949.70/18,199,429.35 = 7,884,924.10/x
3. Step 3: Cross multiply
   12,146,949.70x = 18,199,429.35 × 7,884,924.10
4. Step 4: Simplify right side
   12,146,949.70x = 143,501,119,088,062.34
5. Step 5: Solve for x
   x = 143,501,119,088,062.34/12,146,949.70
6. Step 6: Final answer
   x = 11,813,757.58