Finding the Fourth Proportional to 76,486.50, 105,551.37 and 42,952.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,486.50 : 105,551.37 = 42,952.50 : x
2. Step 2: Convert to fraction form
   76,486.50/105,551.37 = 42,952.50/x
3. Step 3: Cross multiply
   76,486.50x = 105,551.37 × 42,952.50
4. Step 4: Simplify right side
   76,486.50x = 4,533,695,219.93
5. Step 5: Solve for x
   x = 4,533,695,219.93/76,486.50
6. Step 6: Final answer
   x = 59,274.45