Finding the Fourth Proportional to 76,830.39, 106,015.50 and 42,834.69

Step by Step Solution

1. Step 1: Write the proportion equation
   76,830.39 : 106,015.50 = 42,834.69 : x
2. Step 2: Convert to fraction form
   76,830.39/106,015.50 = 42,834.69/x
3. Step 3: Cross multiply
   76,830.39x = 106,015.50 × 42,834.69
4. Step 4: Simplify right side
   76,830.39x = 4,541,141,077.70
5. Step 5: Solve for x
   x = 4,541,141,077.70/76,830.39
6. Step 6: Final answer
   x = 59,106.05