Finding the Fourth Proportional to 42,804.90, 58,948.29 and 30,849.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,804.90 : 58,948.29 = 30,849.30 : x
2. Step 2: Convert to fraction form
   42,804.90/58,948.29 = 30,849.30/x
3. Step 3: Cross multiply
   42,804.90x = 58,948.29 × 30,849.30
4. Step 4: Simplify right side
   42,804.90x = 1,818,513,482.70
5. Step 5: Solve for x
   x = 1,818,513,482.70/42,804.90
6. Step 6: Final answer
   x = 42,483.77