Finding the Fourth Proportional to 1,119,947,647.32, 1,680,002,184.06 and 429,854,901.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119,947,647.32 : 1,680,002,184.06 = 429,854,901.30 : x
2. Step 2: Convert to fraction form
   1,119,947,647.32/1,680,002,184.06 = 429,854,901.30/x
3. Step 3: Cross multiply
   1,119,947,647.32x = 1,680,002,184.06 × 429,854,901.30
4. Step 4: Simplify right side
   1,119,947,647.32x = 722,157,173,012,895,744
5. Step 5: Solve for x
   x = 722,157,173,012,895,744/1,119,947,647.32
6. Step 6: Final answer
   x = 644,813,331.00