Finding the Fourth Proportional to 112,141.80, 154,759.14 and 64,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,141.80 : 154,759.14 = 64,404.72 : x
2. Step 2: Convert to fraction form
   112,141.80/154,759.14 = 64,404.72/x
3. Step 3: Cross multiply
   112,141.80x = 154,759.14 × 64,404.72
4. Step 4: Simplify right side
   112,141.80x = 9,967,219,079.14
5. Step 5: Solve for x
   x = 9,967,219,079.14/112,141.80
6. Step 6: Final answer
   x = 88,880.50