Finding the Fourth Proportional to 10,389,706.58, 14,337,109.55 and 5,978,719.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,389,706.58 : 14,337,109.55 = 5,978,719.40 : x
2. Step 2: Convert to fraction form
   10,389,706.58/14,337,109.55 = 5,978,719.40/x
3. Step 3: Cross multiply
   10,389,706.58x = 14,337,109.55 × 5,978,719.40
4. Step 4: Simplify right side
   10,389,706.58x = 85,717,555,030,417.77
5. Step 5: Solve for x
   x = 85,717,555,030,417.77/10,389,706.58
6. Step 6: Final answer
   x = 8,250,238.29