Finding the Fourth Proportional to 12,060,390.72, 16,643,443.20 and 6,553,764.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,060,390.72 : 16,643,443.20 = 6,553,764.48 : x
2. Step 2: Convert to fraction form
   12,060,390.72/16,643,443.20 = 6,553,764.48/x
3. Step 3: Cross multiply
   12,060,390.72x = 16,643,443.20 × 6,553,764.48
4. Step 4: Simplify right side
   12,060,390.72x = 109,077,206,869,057.53
5. Step 5: Solve for x
   x = 109,077,206,869,057.53/12,060,390.72
6. Step 6: Final answer
   x = 9,044,251.50