Finding the Fourth Proportional to 99,653.25, 137,521.50 and 54,941.25

Step by Step Solution

1. Step 1: Write the proportion equation
   99,653.25 : 137,521.50 = 54,941.25 : x
2. Step 2: Convert to fraction form
   99,653.25/137,521.50 = 54,941.25/x
3. Step 3: Cross multiply
   99,653.25x = 137,521.50 × 54,941.25
4. Step 4: Simplify right side
   99,653.25x = 7,555,603,111.88
5. Step 5: Solve for x
   x = 7,555,603,111.88/99,653.25
6. Step 6: Final answer
   x = 75,818.93