Finding the Fourth Proportional to 10,881,311.89, 15,016,209.91 and 5,986,428.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,881,311.89 : 15,016,209.91 = 5,986,428.98 : x
2. Step 2: Convert to fraction form
   10,881,311.89/15,016,209.91 = 5,986,428.98/x
3. Step 3: Cross multiply
   10,881,311.89x = 15,016,209.91 × 5,986,428.98
4. Step 4: Simplify right side
   10,881,311.89x = 89,893,474,114,872.20
5. Step 5: Solve for x
   x = 89,893,474,114,872.20/10,881,311.89
6. Step 6: Final answer
   x = 8,261,271.71