Finding the Fourth Proportional to 152,774.25, 229,167.59 and 72,771.09

Step by Step Solution

1. Step 1: Write the proportion equation
   152,774.25 : 229,167.59 = 72,771.09 : x
2. Step 2: Convert to fraction form
   152,774.25/229,167.59 = 72,771.09/x
3. Step 3: Cross multiply
   152,774.25x = 229,167.59 × 72,771.09
4. Step 4: Simplify right side
   152,774.25x = 16,676,774,953.12
5. Step 5: Solve for x
   x = 16,676,774,953.12/152,774.25
6. Step 6: Final answer
   x = 109,159.59