Finding the Fourth Proportional to 78,175.98, 107,881.80 and 42,365.68

Step by Step Solution

1. Step 1: Write the proportion equation
   78,175.98 : 107,881.80 = 42,365.68 : x
2. Step 2: Convert to fraction form
   78,175.98/107,881.80 = 42,365.68/x
3. Step 3: Cross multiply
   78,175.98x = 107,881.80 × 42,365.68
4. Step 4: Simplify right side
   78,175.98x = 4,570,485,816.62
5. Step 5: Solve for x
   x = 4,570,485,816.62/78,175.98
6. Step 6: Final answer
   x = 58,464.07