Finding the Fourth Proportional to 76,450.50, 105,501.75 and 42,927.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,450.50 : 105,501.75 = 42,927.30 : x
2. Step 2: Convert to fraction form
   76,450.50/105,501.75 = 42,927.30/x
3. Step 3: Cross multiply
   76,450.50x = 105,501.75 × 42,927.30
4. Step 4: Simplify right side
   76,450.50x = 4,528,905,272.78
5. Step 5: Solve for x
   x = 4,528,905,272.78/76,450.50
6. Step 6: Final answer
   x = 59,239.71