Finding the Fourth Proportional to 538,002.82, 742,415.46 and 308,548.27

Step by Step Solution

1. Step 1: Write the proportion equation
   538,002.82 : 742,415.46 = 308,548.27 : x
2. Step 2: Convert to fraction form
   538,002.82/742,415.46 = 308,548.27/x
3. Step 3: Cross multiply
   538,002.82x = 742,415.46 × 308,548.27
4. Step 4: Simplify right side
   538,002.82x = 229,071,005,804.25
5. Step 5: Solve for x
   x = 229,071,005,804.25/538,002.82
6. Step 6: Final answer
   x = 425,780.31