Finding the Fourth Proportional to 42,730,960.68, 64,096,521.21 and 10,382,890.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,730,960.68 : 64,096,521.21 = 10,382,890.59 : x
2. Step 2: Convert to fraction form
   42,730,960.68/64,096,521.21 = 10,382,890.59/x
3. Step 3: Cross multiply
   42,730,960.68x = 64,096,521.21 × 10,382,890.59
4. Step 4: Simplify right side
   42,730,960.68x = 665,507,166,923,044.38
5. Step 5: Solve for x
   x = 665,507,166,923,044.38/42,730,960.68
6. Step 6: Final answer
   x = 15,574,355.37