Finding the Fourth Proportional to 111,938.86, 167,799.40 and 71,844.77

Step by Step Solution

1. Step 1: Write the proportion equation
   111,938.86 : 167,799.40 = 71,844.77 : x
2. Step 2: Convert to fraction form
   111,938.86/167,799.40 = 71,844.77/x
3. Step 3: Cross multiply
   111,938.86x = 167,799.40 × 71,844.77
4. Step 4: Simplify right side
   111,938.86x = 12,055,509,539.02
5. Step 5: Solve for x
   x = 12,055,509,539.02/111,938.86
6. Step 6: Final answer
   x = 107,697.27