Finding the Fourth Proportional to 185,393.18, 278,111.38 and 67,120.22

Step by Step Solution

1. Step 1: Write the proportion equation
   185,393.18 : 278,111.38 = 67,120.22 : x
2. Step 2: Convert to fraction form
   185,393.18/278,111.38 = 67,120.22/x
3. Step 3: Cross multiply
   185,393.18x = 278,111.38 × 67,120.22
4. Step 4: Simplify right side
   185,393.18x = 18,666,897,010.10
5. Step 5: Solve for x
   x = 18,666,897,010.10/185,393.18
6. Step 6: Final answer
   x = 100,688.15