Finding the Fourth Proportional to 112,100.20, 154,693.56 and 61,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   112,100.20 : 154,693.56 = 61,111.84 : x
2. Step 2: Convert to fraction form
   112,100.20/154,693.56 = 61,111.84/x
3. Step 3: Cross multiply
   112,100.20x = 154,693.56 × 61,111.84
4. Step 4: Simplify right side
   112,100.20x = 9,453,608,087.75
5. Step 5: Solve for x
   x = 9,453,608,087.75/112,100.20
6. Step 6: Final answer
   x = 84,331.77