Finding the Fourth Proportional to 76,150, 105,087.36 and 42,616

Step by Step Solution

1. Step 1: Write the proportion equation
   76,150 : 105,087.36 = 42,616 : x
2. Step 2: Convert to fraction form
   76,150/105,087.36 = 42,616/x
3. Step 3: Cross multiply
   76,150x = 105,087.36 × 42,616
4. Step 4: Simplify right side
   76,150x = 4,478,402,933.76
5. Step 5: Solve for x
   x = 4,478,402,933.76/76,150
6. Step 6: Final answer
   x = 58,810.28