Finding the Fourth Proportional to 76,116.47, 105,039.23 and 42,122.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,116.47 : 105,039.23 = 42,122.98 : x
2. Step 2: Convert to fraction form
   76,116.47/105,039.23 = 42,122.98/x
3. Step 3: Cross multiply
   76,116.47x = 105,039.23 × 42,122.98
4. Step 4: Simplify right side
   76,116.47x = 4,424,564,648.69
5. Step 5: Solve for x
   x = 4,424,564,648.69/76,116.47
6. Step 6: Final answer
   x = 58,128.87