Finding the Fourth Proportional to 76,377.32, 105,405.54 and 42,845.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,377.32 : 105,405.54 = 42,845.48 : x
2. Step 2: Convert to fraction form
   76,377.32/105,405.54 = 42,845.48/x
3. Step 3: Cross multiply
   76,377.32x = 105,405.54 × 42,845.48
4. Step 4: Simplify right side
   76,377.32x = 4,516,150,955.96
5. Step 5: Solve for x
   x = 4,516,150,955.96/76,377.32
6. Step 6: Final answer
   x = 59,129.48