Finding the Fourth Proportional to 12,706,818.72, 17,534,738.72 and 7,200,259.58

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706,818.72 : 17,534,738.72 = 7,200,259.58 : x
2. Step 2: Convert to fraction form
   12,706,818.72/17,534,738.72 = 7,200,259.58/x
3. Step 3: Cross multiply
   12,706,818.72x = 17,534,738.72 × 7,200,259.58
4. Step 4: Simplify right side
   12,706,818.72x = 126,254,670,458,284.62
5. Step 5: Solve for x
   x = 126,254,670,458,284.62/12,706,818.72
6. Step 6: Final answer
   x = 9,935,977.94