Finding the Fourth Proportional to 5,140,890.20, 7,094,384.37 and 2,817,911.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,140,890.20 : 7,094,384.37 = 2,817,911.72 : x
2. Step 2: Convert to fraction form
   5,140,890.20/7,094,384.37 = 2,817,911.72/x
3. Step 3: Cross multiply
   5,140,890.20x = 7,094,384.37 × 2,817,911.72
4. Step 4: Simplify right side
   5,140,890.20x = 19,991,348,826,935.89
5. Step 5: Solve for x
   x = 19,991,348,826,935.89/5,140,890.20
6. Step 6: Final answer
   x = 3,888,693.99