Finding the Fourth Proportional to 76,293.56, 105,286.38 and 42,303.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,293.56 : 105,286.38 = 42,303.48 : x
2. Step 2: Convert to fraction form
   76,293.56/105,286.38 = 42,303.48/x
3. Step 3: Cross multiply
   76,293.56x = 105,286.38 × 42,303.48
4. Step 4: Simplify right side
   76,293.56x = 4,453,980,547.33
5. Step 5: Solve for x
   x = 4,453,980,547.33/76,293.56
6. Step 6: Final answer
   x = 58,379.51