Finding the Fourth Proportional to 76,366.77, 105,386.72 and 42,375.39

Step by Step Solution

1. Step 1: Write the proportion equation
   76,366.77 : 105,386.72 = 42,375.39 : x
2. Step 2: Convert to fraction form
   76,366.77/105,386.72 = 42,375.39/x
3. Step 3: Cross multiply
   76,366.77x = 105,386.72 × 42,375.39
4. Step 4: Simplify right side
   76,366.77x = 4,465,803,148.94
5. Step 5: Solve for x
   x = 4,465,803,148.94/76,366.77
6. Step 6: Final answer
   x = 58,478.36