Finding the Fourth Proportional to 76,436.70, 105,461.91 and 42,901.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,436.70 : 105,461.91 = 42,901.98 : x
2. Step 2: Convert to fraction form
   76,436.70/105,461.91 = 42,901.98/x
3. Step 3: Cross multiply
   76,436.70x = 105,461.91 × 42,901.98
4. Step 4: Simplify right side
   76,436.70x = 4,524,524,753.58
5. Step 5: Solve for x
   x = 4,524,524,753.58/76,436.70
6. Step 6: Final answer
   x = 59,193.09