Finding the Fourth Proportional to 99,256.16, 136,974.06 and 53,934.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,256.16 : 136,974.06 = 53,934.52 : x
2. Step 2: Convert to fraction form
   99,256.16/136,974.06 = 53,934.52/x
3. Step 3: Cross multiply
   99,256.16x = 136,974.06 × 53,934.52
4. Step 4: Simplify right side
   99,256.16x = 7,387,630,178.55
5. Step 5: Solve for x
   x = 7,387,630,178.55/99,256.16
6. Step 6: Final answer
   x = 74,429.94