Finding the Fourth Proportional to 12,592,726.64, 18,892,388.81 and 3,956,478.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,592,726.64 : 18,892,388.81 = 3,956,478.15 : x
2. Step 2: Convert to fraction form
   12,592,726.64/18,892,388.81 = 3,956,478.15/x
3. Step 3: Cross multiply
   12,592,726.64x = 18,892,388.81 × 3,956,478.15
4. Step 4: Simplify right side
   12,592,726.64x = 74,747,323,537,960.69
5. Step 5: Solve for x
   x = 74,747,323,537,960.69/12,592,726.64
6. Step 6: Final answer
   x = 5,935,753.69