Finding the Fourth Proportional to 4,309,956.50, 6,464,967.15 and 1,913,156.78

Step by Step Solution

1. Step 1: Write the proportion equation
   4,309,956.50 : 6,464,967.15 = 1,913,156.78 : x
2. Step 2: Convert to fraction form
   4,309,956.50/6,464,967.15 = 1,913,156.78/x
3. Step 3: Cross multiply
   4,309,956.50x = 6,464,967.15 × 1,913,156.78
4. Step 4: Simplify right side
   4,309,956.50x = 12,368,495,735,499.78
5. Step 5: Solve for x
   x = 12,368,495,735,499.78/4,309,956.50
6. Step 6: Final answer
   x = 2,869,749.55