Finding the Fourth Proportional to 76,339.44, 105,348.78 and 42,345.56

Step by Step Solution

1. Step 1: Write the proportion equation
   76,339.44 : 105,348.78 = 42,345.56 : x
2. Step 2: Convert to fraction form
   76,339.44/105,348.78 = 42,345.56/x
3. Step 3: Cross multiply
   76,339.44x = 105,348.78 × 42,345.56
4. Step 4: Simplify right side
   76,339.44x = 4,461,053,084.42
5. Step 5: Solve for x
   x = 4,461,053,084.42/76,339.44
6. Step 6: Final answer
   x = 58,437.07