Finding the Fourth Proportional to 76,111.55, 105,034.14 and 42,122.38

Step by Step Solution

1. Step 1: Write the proportion equation
   76,111.55 : 105,034.14 = 42,122.38 : x
2. Step 2: Convert to fraction form
   76,111.55/105,034.14 = 42,122.38/x
3. Step 3: Cross multiply
   76,111.55x = 105,034.14 × 42,122.38
4. Step 4: Simplify right side
   76,111.55x = 4,424,287,222.27
5. Step 5: Solve for x
   x = 4,424,287,222.27/76,111.55
6. Step 6: Final answer
   x = 58,128.99