Finding the Fourth Proportional to 99,182.76, 136,871.72 and 53,860.36

Step by Step Solution

1. Step 1: Write the proportion equation
   99,182.76 : 136,871.72 = 53,860.36 : x
2. Step 2: Convert to fraction form
   99,182.76/136,871.72 = 53,860.36/x
3. Step 3: Cross multiply
   99,182.76x = 136,871.72 × 53,860.36
4. Step 4: Simplify right side
   99,182.76x = 7,371,960,113.02
5. Step 5: Solve for x
   x = 7,371,960,113.02/99,182.76
6. Step 6: Final answer
   x = 74,327.03