Finding the Fourth Proportional to 99,962.42, 137,945.58 and 54,640.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,962.42 : 137,945.58 = 54,640.52 : x
2. Step 2: Convert to fraction form
   99,962.42/137,945.58 = 54,640.52/x
3. Step 3: Cross multiply
   99,962.42x = 137,945.58 × 54,640.52
4. Step 4: Simplify right side
   99,962.42x = 7,537,418,222.90
5. Step 5: Solve for x
   x = 7,537,418,222.90/99,962.42
6. Step 6: Final answer
   x = 75,402.52