Finding the Fourth Proportional to 790,002.72, 1,090,124.73 and 445,807.80

Step by Step Solution

1. Step 1: Write the proportion equation
   790,002.72 : 1,090,124.73 = 445,807.80 : x
2. Step 2: Convert to fraction form
   790,002.72/1,090,124.73 = 445,807.80/x
3. Step 3: Cross multiply
   790,002.72x = 1,090,124.73 × 445,807.80
4. Step 4: Simplify right side
   790,002.72x = 485,986,107,606.89
5. Step 5: Solve for x
   x = 485,986,107,606.89/790,002.72
6. Step 6: Final answer
   x = 615,170.17