Finding the Fourth Proportional to 2,648,490,472.52, 3,971,356,263.98 and 1,249,099,006.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648,490,472.52 : 3,971,356,263.98 = 1,249,099,006.92 : x
2. Step 2: Convert to fraction form
   2,648,490,472.52/3,971,356,263.98 = 1,249,099,006.92/x
3. Step 3: Cross multiply
   2,648,490,472.52x = 3,971,356,263.98 × 1,249,099,006.92
4. Step 4: Simplify right side
   2,648,490,472.52x = 4,960,617,165,462,939,648
5. Step 5: Solve for x
   x = 4,960,617,165,462,939,648/2,648,490,472.52
6. Step 6: Final answer
   x = 1,872,997,927.28