Finding the Fourth Proportional to 12,742,296.72, 17,584,393.32 and 7,585,836.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,742,296.72 : 17,584,393.32 = 7,585,836.72 : x
2. Step 2: Convert to fraction form
   12,742,296.72/17,584,393.32 = 7,585,836.72/x
3. Step 3: Cross multiply
   12,742,296.72x = 17,584,393.32 × 7,585,836.72
4. Step 4: Simplify right side
   12,742,296.72x = 133,392,336,545,778.70
5. Step 5: Solve for x
   x = 133,392,336,545,778.70/12,742,296.72
6. Step 6: Final answer
   x = 10,468,468.87