Finding the Fourth Proportional to 111,577.74, 167,385.06 and 55,419.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,577.74 : 167,385.06 = 55,419.72 : x
2. Step 2: Convert to fraction form
   111,577.74/167,385.06 = 55,419.72/x
3. Step 3: Cross multiply
   111,577.74x = 167,385.06 × 55,419.72
4. Step 4: Simplify right side
   111,577.74x = 9,276,433,157.38
5. Step 5: Solve for x
   x = 9,276,433,157.38/111,577.74
6. Step 6: Final answer
   x = 83,138.74