Finding the Fourth Proportional to 12,019,828.42, 18,029,609.52 and 2,921,934.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,019,828.42 : 18,029,609.52 = 2,921,934.70 : x
2. Step 2: Convert to fraction form
   12,019,828.42/18,029,609.52 = 2,921,934.70/x
3. Step 3: Cross multiply
   12,019,828.42x = 18,029,609.52 × 2,921,934.70
4. Step 4: Simplify right side
   12,019,828.42x = 52,681,341,683,938.34
5. Step 5: Solve for x
   x = 52,681,341,683,938.34/12,019,828.42
6. Step 6: Final answer
   x = 4,382,869.69