Finding the Fourth Proportional to 76,371.96, 105,384.76 and 42,379.32

Step by Step Solution

1. Step 1: Write the proportion equation
   76,371.96 : 105,384.76 = 42,379.32 : x
2. Step 2: Convert to fraction form
   76,371.96/105,384.76 = 42,379.32/x
3. Step 3: Cross multiply
   76,371.96x = 105,384.76 × 42,379.32
4. Step 4: Simplify right side
   76,371.96x = 4,466,134,467.16
5. Step 5: Solve for x
   x = 4,466,134,467.16/76,371.96
6. Step 6: Final answer
   x = 58,478.72