Finding the Fourth Proportional to 12,010,978.15, 18,016,965.48 and 3,491,314.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,010,978.15 : 18,016,965.48 = 3,491,314.62 : x
2. Step 2: Convert to fraction form
   12,010,978.15/18,016,965.48 = 3,491,314.62/x
3. Step 3: Cross multiply
   12,010,978.15x = 18,016,965.48 × 3,491,314.62
4. Step 4: Simplify right side
   12,010,978.15x = 62,902,894,898,274.49
5. Step 5: Solve for x
   x = 62,902,894,898,274.49/12,010,978.15
6. Step 6: Final answer
   x = 5,237,116.75