Finding the Fourth Proportional to 9,621,126, 13,277,367.72 and 5,491,074.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,621,126 : 13,277,367.72 = 5,491,074.51 : x
2. Step 2: Convert to fraction form
   9,621,126/13,277,367.72 = 5,491,074.51/x
3. Step 3: Cross multiply
   9,621,126x = 13,277,367.72 × 5,491,074.51
4. Step 4: Simplify right side
   9,621,126x = 72,907,015,447,188.81
5. Step 5: Solve for x
   x = 72,907,015,447,188.81/9,621,126
6. Step 6: Final answer
   x = 7,577,804.87