Finding the Fourth Proportional to 5,161,756.37, 7,123,060.71 and 2,838,641.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,161,756.37 : 7,123,060.71 = 2,838,641.72 : x
2. Step 2: Convert to fraction form
   5,161,756.37/7,123,060.71 = 2,838,641.72/x
3. Step 3: Cross multiply
   5,161,756.37x = 7,123,060.71 × 2,838,641.72
4. Step 4: Simplify right side
   5,161,756.37x = 20,219,817,269,883.52
5. Step 5: Solve for x
   x = 20,219,817,269,883.52/5,161,756.37
6. Step 6: Final answer
   x = 3,917,235.89