Finding the Fourth Proportional to 132,810.07, 183,272.55 and 72,379.42

Step by Step Solution

1. Step 1: Write the proportion equation
   132,810.07 : 183,272.55 = 72,379.42 : x
2. Step 2: Convert to fraction form
   132,810.07/183,272.55 = 72,379.42/x
3. Step 3: Cross multiply
   132,810.07x = 183,272.55 × 72,379.42
4. Step 4: Simplify right side
   132,810.07x = 13,265,160,870.92
5. Step 5: Solve for x
   x = 13,265,160,870.92/132,810.07
6. Step 6: Final answer
   x = 99,880.69