Finding the Fourth Proportional to 42,964,859.89, 64,445,542.06 and 10,615,947.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,964,859.89 : 64,445,542.06 = 10,615,947.81 : x
2. Step 2: Convert to fraction form
   42,964,859.89/64,445,542.06 = 10,615,947.81/x
3. Step 3: Cross multiply
   42,964,859.89x = 64,445,542.06 × 10,615,947.81
4. Step 4: Simplify right side
   42,964,859.89x = 684,150,511,096,120
5. Step 5: Solve for x
   x = 684,150,511,096,120/42,964,859.89
6. Step 6: Final answer
   x = 15,923,489.87