Finding the Fourth Proportional to 9,985,487.70, 13,779,926.37 and 5,401,768.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985,487.70 : 13,779,926.37 = 5,401,768.98 : x
2. Step 2: Convert to fraction form
   9,985,487.70/13,779,926.37 = 5,401,768.98/x
3. Step 3: Cross multiply
   9,985,487.70x = 13,779,926.37 × 5,401,768.98
4. Step 4: Simplify right side
   9,985,487.70x = 74,435,978,812,150
5. Step 5: Solve for x
   x = 74,435,978,812,150/9,985,487.70
6. Step 6: Final answer
   x = 7,454,415.95