Finding the Fourth Proportional to 111,978.41, 154,530.19 and 61,677.41

Step by Step Solution

1. Step 1: Write the proportion equation
   111,978.41 : 154,530.19 = 61,677.41 : x
2. Step 2: Convert to fraction form
   111,978.41/154,530.19 = 61,677.41/x
3. Step 3: Cross multiply
   111,978.41x = 154,530.19 × 61,677.41
4. Step 4: Simplify right side
   111,978.41x = 9,531,021,886.01
5. Step 5: Solve for x
   x = 9,531,021,886.01/111,978.41
6. Step 6: Final answer
   x = 85,114.82