Finding the Fourth Proportional to 13,065,549.42, 18,029,522.27 and 7,185,597.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,065,549.42 : 18,029,522.27 = 7,185,597.63 : x
2. Step 2: Convert to fraction form
   13,065,549.42/18,029,522.27 = 7,185,597.63/x
3. Step 3: Cross multiply
   13,065,549.42x = 18,029,522.27 × 7,185,597.63
4. Step 4: Simplify right side
   13,065,549.42x = 129,552,892,367,268.62
5. Step 5: Solve for x
   x = 129,552,892,367,268.62/13,065,549.42
6. Step 6: Final answer
   x = 9,915,609.99