Finding the Fourth Proportional to 76,113.66, 105,034.67 and 42,123.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,113.66 : 105,034.67 = 42,123.56 : x
2. Step 2: Convert to fraction form
   76,113.66/105,034.67 = 42,123.56/x
3. Step 3: Cross multiply
   76,113.66x = 105,034.67 × 42,123.56
4. Step 4: Simplify right side
   76,113.66x = 4,424,434,223.83
5. Step 5: Solve for x
   x = 4,424,434,223.83/76,113.66
6. Step 6: Final answer
   x = 58,129.31