Finding the Fourth Proportional to 185,561.48, 278,208.27 and 78,886.91

Step by Step Solution

1. Step 1: Write the proportion equation
   185,561.48 : 278,208.27 = 78,886.91 : x
2. Step 2: Convert to fraction form
   185,561.48/278,208.27 = 78,886.91/x
3. Step 3: Cross multiply
   185,561.48x = 278,208.27 × 78,886.91
4. Step 4: Simplify right side
   185,561.48x = 21,946,991,452.27
5. Step 5: Solve for x
   x = 21,946,991,452.27/185,561.48
6. Step 6: Final answer
   x = 118,273.42