Finding the Fourth Proportional to 78,125.12, 107,811.38 and 42,314.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,125.12 : 107,811.38 = 42,314.82 : x
2. Step 2: Convert to fraction form
   78,125.12/107,811.38 = 42,314.82/x
3. Step 3: Cross multiply
   78,125.12x = 107,811.38 × 42,314.82
4. Step 4: Simplify right side
   78,125.12x = 4,562,018,840.15
5. Step 5: Solve for x
   x = 4,562,018,840.15/78,125.12
6. Step 6: Final answer
   x = 58,393.75