Finding the Fourth Proportional to 78,150.69, 107,847.78 and 42,341.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,150.69 : 107,847.78 = 42,341.58 : x
2. Step 2: Convert to fraction form
   78,150.69/107,847.78 = 42,341.58/x
3. Step 3: Cross multiply
   78,150.69x = 107,847.78 × 42,341.58
4. Step 4: Simplify right side
   78,150.69x = 4,566,445,404.69
5. Step 5: Solve for x
   x = 4,566,445,404.69/78,150.69
6. Step 6: Final answer
   x = 58,431.29