Finding the Fourth Proportional to 111,926.72, 154,467.60 and 61,634.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,926.72 : 154,467.60 = 61,634.72 : x
2. Step 2: Convert to fraction form
   111,926.72/154,467.60 = 61,634.72/x
3. Step 3: Cross multiply
   111,926.72x = 154,467.60 × 61,634.72
4. Step 4: Simplify right side
   111,926.72x = 9,520,567,275.07
5. Step 5: Solve for x
   x = 9,520,567,275.07/111,926.72
6. Step 6: Final answer
   x = 85,060.72