Finding the Fourth Proportional to 76,113.16, 105,033.98 and 42,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   76,113.16 : 105,033.98 = 42,123.06 : x
2. Step 2: Convert to fraction form
   76,113.16/105,033.98 = 42,123.06/x
3. Step 3: Cross multiply
   76,113.16x = 105,033.98 × 42,123.06
4. Step 4: Simplify right side
   76,113.16x = 4,424,352,746.89
5. Step 5: Solve for x
   x = 4,424,352,746.89/76,113.16
6. Step 6: Final answer
   x = 58,128.62