Finding the Fourth Proportional to 78,303.48, 108,056.94 and 42,491.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,303.48 : 108,056.94 = 42,491.96 : x
2. Step 2: Convert to fraction form
   78,303.48/108,056.94 = 42,491.96/x
3. Step 3: Cross multiply
   78,303.48x = 108,056.94 × 42,491.96
4. Step 4: Simplify right side
   78,303.48x = 4,591,551,172.20
5. Step 5: Solve for x
   x = 4,591,551,172.20/78,303.48
6. Step 6: Final answer
   x = 58,637.89