Finding the Fourth Proportional to 12,742,290.72, 17,584,385.04 and 7,585,830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,742,290.72 : 17,584,385.04 = 7,585,830.72 : x
2. Step 2: Convert to fraction form
   12,742,290.72/17,584,385.04 = 7,585,830.72/x
3. Step 3: Cross multiply
   12,742,290.72x = 17,584,385.04 × 7,585,830.72
4. Step 4: Simplify right side
   12,742,290.72x = 133,392,168,228,740.42
5. Step 5: Solve for x
   x = 133,392,168,228,740.42/12,742,290.72
6. Step 6: Final answer
   x = 10,468,460.59