Finding the Fourth Proportional to 2,139,955,367.06, 2,953,162,347.92 and 1,187,353,353.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,955,367.06 : 2,953,162,347.92 = 1,187,353,353.27 : x
2. Step 2: Convert to fraction form
   2,139,955,367.06/2,953,162,347.92 = 1,187,353,353.27/x
3. Step 3: Cross multiply
   2,139,955,367.06x = 2,953,162,347.92 × 1,187,353,353.27
4. Step 4: Simplify right side
   2,139,955,367.06x = 3,506,447,216,563,196,928
5. Step 5: Solve for x
   x = 3,506,447,216,563,196,928/2,139,955,367.06
6. Step 6: Final answer
   x = 1,638,560,911.38