Finding the Fourth Proportional to 42,412.75, 58,503.53 and 30,492.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42,412.75 : 58,503.53 = 30,492.07 : x
2. Step 2: Convert to fraction form
   42,412.75/58,503.53 = 30,492.07/x
3. Step 3: Cross multiply
   42,412.75x = 58,503.53 × 30,492.07
4. Step 4: Simplify right side
   42,412.75x = 1,783,893,661.98
5. Step 5: Solve for x
   x = 1,783,893,661.98/42,412.75
6. Step 6: Final answer
   x = 42,060.32