Finding the Fourth Proportional to 42,732.31, 58,887.34 and 30,773.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,732.31 : 58,887.34 = 30,773.07 : x
2. Step 2: Convert to fraction form
   42,732.31/58,887.34 = 30,773.07/x
3. Step 3: Cross multiply
   42,732.31x = 58,887.34 × 30,773.07
4. Step 4: Simplify right side
   42,732.31x = 1,812,144,235.93
5. Step 5: Solve for x
   x = 1,812,144,235.93/42,732.31
6. Step 6: Final answer
   x = 42,406.89