Finding the Fourth Proportional to 7,406,239.67, 10,220,128.22 and 4,142,488.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,406,239.67 : 10,220,128.22 = 4,142,488.31 : x
2. Step 2: Convert to fraction form
   7,406,239.67/10,220,128.22 = 4,142,488.31/x
3. Step 3: Cross multiply
   7,406,239.67x = 10,220,128.22 × 4,142,488.31
4. Step 4: Simplify right side
   7,406,239.67x = 42,336,761,606,238.02
5. Step 5: Solve for x
   x = 42,336,761,606,238.02/7,406,239.67
6. Step 6: Final answer
   x = 5,716,363.97