Finding the Fourth Proportional to 78,160.32, 107,860.14 and 42,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,160.32 : 107,860.14 = 42,349.50 : x
2. Step 2: Convert to fraction form
   78,160.32/107,860.14 = 42,349.50/x
3. Step 3: Cross multiply
   78,160.32x = 107,860.14 × 42,349.50
4. Step 4: Simplify right side
   78,160.32x = 4,567,822,998.93
5. Step 5: Solve for x
   x = 4,567,822,998.93/78,160.32
6. Step 6: Final answer
   x = 58,441.71