Finding the Fourth Proportional to 9,142,139.35, 12,617,437.56 and 5,658,595.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142,139.35 : 12,617,437.56 = 5,658,595.48 : x
2. Step 2: Convert to fraction form
   9,142,139.35/12,617,437.56 = 5,658,595.48/x
3. Step 3: Cross multiply
   9,142,139.35x = 12,617,437.56 × 5,658,595.48
4. Step 4: Simplify right side
   9,142,139.35x = 71,396,975,146,198.23
5. Step 5: Solve for x
   x = 71,396,975,146,198.23/9,142,139.35
6. Step 6: Final answer
   x = 7,809,657.28