Finding the Fourth Proportional to 78,277.50, 108,023.27 and 42,467.77

Step by Step Solution

1. Step 1: Write the proportion equation
   78,277.50 : 108,023.27 = 42,467.77 : x
2. Step 2: Convert to fraction form
   78,277.50/108,023.27 = 42,467.77/x
3. Step 3: Cross multiply
   78,277.50x = 108,023.27 × 42,467.77
4. Step 4: Simplify right side
   78,277.50x = 4,587,507,385.01
5. Step 5: Solve for x
   x = 4,587,507,385.01/78,277.50
6. Step 6: Final answer
   x = 58,605.70