Finding the Fourth Proportional to 13,886,142.31, 19,162,662.37 and 7,774,789.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,886,142.31 : 19,162,662.37 = 7,774,789.51 : x
2. Step 2: Convert to fraction form
   13,886,142.31/19,162,662.37 = 7,774,789.51/x
3. Step 3: Cross multiply
   13,886,142.31x = 19,162,662.37 × 7,774,789.51
4. Step 4: Simplify right side
   13,886,142.31x = 148,985,666,377,947.75
5. Step 5: Solve for x
   x = 148,985,666,377,947.75/13,886,142.31
6. Step 6: Final answer
   x = 10,729,089.70