Finding the Fourth Proportional to 99,895.49, 137,853.52 and 54,573.67

Step by Step Solution

1. Step 1: Write the proportion equation
   99,895.49 : 137,853.52 = 54,573.67 : x
2. Step 2: Convert to fraction form
   99,895.49/137,853.52 = 54,573.67/x
3. Step 3: Cross multiply
   99,895.49x = 137,853.52 × 54,573.67
4. Step 4: Simplify right side
   99,895.49x = 7,523,173,085.90
5. Step 5: Solve for x
   x = 7,523,173,085.90/99,895.49
6. Step 6: Final answer
   x = 75,310.44