Finding the Fourth Proportional to 9,295,931.55, 12,828,697.04 and 5,166,136.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,295,931.55 : 12,828,697.04 = 5,166,136.72 : x
2. Step 2: Convert to fraction form
   9,295,931.55/12,828,697.04 = 5,166,136.72/x
3. Step 3: Cross multiply
   9,295,931.55x = 12,828,697.04 × 5,166,136.72
4. Step 4: Simplify right side
   9,295,931.55x = 66,274,802,848,099.30
5. Step 5: Solve for x
   x = 66,274,802,848,099.30/9,295,931.55
6. Step 6: Final answer
   x = 7,129,441.79