Finding the Fourth Proportional to 1,443,513,341.32, 1,991,820,871.92 and 840,783,160.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443,513,341.32 : 1,991,820,871.92 = 840,783,160.18 : x
2. Step 2: Convert to fraction form
   1,443,513,341.32/1,991,820,871.92 = 840,783,160.18/x
3. Step 3: Cross multiply
   1,443,513,341.32x = 1,991,820,871.92 × 840,783,160.18
4. Step 4: Simplify right side
   1,443,513,341.32x = 1,674,689,447,205,380,608
5. Step 5: Solve for x
   x = 1,674,689,447,205,380,608/1,443,513,341.32
6. Step 6: Final answer
   x = 1,160,148,229.51