Finding the Fourth Proportional to 112,109.07, 154,709.32 and 61,121.67

Step by Step Solution

1. Step 1: Write the proportion equation
   112,109.07 : 154,709.32 = 61,121.67 : x
2. Step 2: Convert to fraction form
   112,109.07/154,709.32 = 61,121.67/x
3. Step 3: Cross multiply
   112,109.07x = 154,709.32 × 61,121.67
4. Step 4: Simplify right side
   112,109.07x = 9,456,092,002.96
5. Step 5: Solve for x
   x = 9,456,092,002.96/112,109.07
6. Step 6: Final answer
   x = 84,347.25