Finding the Fourth Proportional to 78,477.44, 108,301 and 42,669.86

Step by Step Solution

1. Step 1: Write the proportion equation
   78,477.44 : 108,301 = 42,669.86 : x
2. Step 2: Convert to fraction form
   78,477.44/108,301 = 42,669.86/x
3. Step 3: Cross multiply
   78,477.44x = 108,301 × 42,669.86
4. Step 4: Simplify right side
   78,477.44x = 4,621,188,507.86
5. Step 5: Solve for x
   x = 4,621,188,507.86/78,477.44
6. Step 6: Final answer
   x = 58,885.57