Finding the Fourth Proportional to 112,126.89, 154,736.33 and 61,139.22

Step by Step Solution

1. Step 1: Write the proportion equation
   112,126.89 : 154,736.33 = 61,139.22 : x
2. Step 2: Convert to fraction form
   112,126.89/154,736.33 = 61,139.22/x
3. Step 3: Cross multiply
   112,126.89x = 154,736.33 × 61,139.22
4. Step 4: Simplify right side
   112,126.89x = 9,460,458,521.86
5. Step 5: Solve for x
   x = 9,460,458,521.86/112,126.89
6. Step 6: Final answer
   x = 84,372.79