Finding the Fourth Proportional to 2,156,439,686.04, 3,240,347,405.55 and 1,161,196,544.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,439,686.04 : 3,240,347,405.55 = 1,161,196,544.10 : x
2. Step 2: Convert to fraction form
   2,156,439,686.04/3,240,347,405.55 = 1,161,196,544.10/x
3. Step 3: Cross multiply
   2,156,439,686.04x = 3,240,347,405.55 × 1,161,196,544.10
4. Step 4: Simplify right side
   2,156,439,686.04x = 3,762,680,209,008,060,928
5. Step 5: Solve for x
   x = 3,762,680,209,008,060,928/2,156,439,686.04
6. Step 6: Final answer
   x = 1,744,857,615.71