Finding the Fourth Proportional to 76,338.18, 105,347.32 and 42,348.89

Step by Step Solution

1. Step 1: Write the proportion equation
   76,338.18 : 105,347.32 = 42,348.89 : x
2. Step 2: Convert to fraction form
   76,338.18/105,347.32 = 42,348.89/x
3. Step 3: Cross multiply
   76,338.18x = 105,347.32 × 42,348.89
4. Step 4: Simplify right side
   76,338.18x = 4,461,341,854.73
5. Step 5: Solve for x
   x = 4,461,341,854.73/76,338.18
6. Step 6: Final answer
   x = 58,441.82