Finding the Fourth Proportional to 42,225.29, 58,278.93 and 30,158.45

Step by Step Solution

1. Step 1: Write the proportion equation
   42,225.29 : 58,278.93 = 30,158.45 : x
2. Step 2: Convert to fraction form
   42,225.29/58,278.93 = 30,158.45/x
3. Step 3: Cross multiply
   42,225.29x = 58,278.93 × 30,158.45
4. Step 4: Simplify right side
   42,225.29x = 1,757,602,196.46
5. Step 5: Solve for x
   x = 1,757,602,196.46/42,225.29
6. Step 6: Final answer
   x = 41,624.40