Finding the Fourth Proportional to 12,986,429.94, 19,482,301.71 and 4,465,659.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,986,429.94 : 19,482,301.71 = 4,465,659.78 : x
2. Step 2: Convert to fraction form
   12,986,429.94/19,482,301.71 = 4,465,659.78/x
3. Step 3: Cross multiply
   12,986,429.94x = 19,482,301.71 × 4,465,659.78
4. Step 4: Simplify right side
   12,986,429.94x = 87,001,331,168,172.23
5. Step 5: Solve for x
   x = 87,001,331,168,172.23/12,986,429.94
6. Step 6: Final answer
   x = 6,699,403.27