Finding the Fourth Proportional to 78,417.98, 108,216.93 and 42,607.98

Step by Step Solution

1. Step 1: Write the proportion equation
   78,417.98 : 108,216.93 = 42,607.98 : x
2. Step 2: Convert to fraction form
   78,417.98/108,216.93 = 42,607.98/x
3. Step 3: Cross multiply
   78,417.98x = 108,216.93 × 42,607.98
4. Step 4: Simplify right side
   78,417.98x = 4,610,904,789.10
5. Step 5: Solve for x
   x = 4,610,904,789.10/78,417.98
6. Step 6: Final answer
   x = 58,799.08