Finding the Fourth Proportional to 12,612,196.58, 17,404,831.11 and 6,810,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612,196.58 : 17,404,831.11 = 6,810,978.15 : x
2. Step 2: Convert to fraction form
   12,612,196.58/17,404,831.11 = 6,810,978.15/x
3. Step 3: Cross multiply
   12,612,196.58x = 17,404,831.11 × 6,810,978.15
4. Step 4: Simplify right side
   12,612,196.58x = 118,543,924,381,879.67
5. Step 5: Solve for x
   x = 118,543,924,381,879.67/12,612,196.58
6. Step 6: Final answer
   x = 9,399,149.75