Finding the Fourth Proportional to 112,523.88, 155,141.82 and 72,166.44

Step by Step Solution

1. Step 1: Write the proportion equation
   112,523.88 : 155,141.82 = 72,166.44 : x
2. Step 2: Convert to fraction form
   112,523.88/155,141.82 = 72,166.44/x
3. Step 3: Cross multiply
   112,523.88x = 155,141.82 × 72,166.44
4. Step 4: Simplify right side
   112,523.88x = 11,196,032,844.52
5. Step 5: Solve for x
   x = 11,196,032,844.52/112,523.88
6. Step 6: Final answer
   x = 99,499.17