Finding the Fourth Proportional to 12,385,147.82, 17,090,503.94 and 7,158,494.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,385,147.82 : 17,090,503.94 = 7,158,494.56 : x
2. Step 2: Convert to fraction form
   12,385,147.82/17,090,503.94 = 7,158,494.56/x
3. Step 3: Cross multiply
   12,385,147.82x = 17,090,503.94 × 7,158,494.56
4. Step 4: Simplify right side
   12,385,147.82x = 122,342,279,482,148.56
5. Step 5: Solve for x
   x = 122,342,279,482,148.56/12,385,147.82
6. Step 6: Final answer
   x = 9,878,144.47