Finding the Fourth Proportional to 99,725.82, 137,612.04 and 55,010.94

Step by Step Solution

1. Step 1: Write the proportion equation
   99,725.82 : 137,612.04 = 55,010.94 : x
2. Step 2: Convert to fraction form
   99,725.82/137,612.04 = 55,010.94/x
3. Step 3: Cross multiply
   99,725.82x = 137,612.04 × 55,010.94
4. Step 4: Simplify right side
   99,725.82x = 7,570,167,675.72
5. Step 5: Solve for x
   x = 7,570,167,675.72/99,725.82
6. Step 6: Final answer
   x = 75,909.81