Finding the Fourth Proportional to 2,882,138,958.72, 4,323,798,081.60 and 991,089,533.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,882,138,958.72 : 4,323,798,081.60 = 991,089,533.92 : x
2. Step 2: Convert to fraction form
   2,882,138,958.72/4,323,798,081.60 = 991,089,533.92/x
3. Step 3: Cross multiply
   2,882,138,958.72x = 4,323,798,081.60 × 991,089,533.92
4. Step 4: Simplify right side
   2,882,138,958.72x = 4,285,271,025,439,748,096
5. Step 5: Solve for x
   x = 4,285,271,025,439,748,096/2,882,138,958.72
6. Step 6: Final answer
   x = 1,486,837,063.31