Finding the Fourth Proportional to 152,658.72, 210,748.16 and 118,590.88

Step by Step Solution

1. Step 1: Write the proportion equation
   152,658.72 : 210,748.16 = 118,590.88 : x
2. Step 2: Convert to fraction form
   152,658.72/210,748.16 = 118,590.88/x
3. Step 3: Cross multiply
   152,658.72x = 210,748.16 × 118,590.88
4. Step 4: Simplify right side
   152,658.72x = 24,992,809,752.78
5. Step 5: Solve for x
   x = 24,992,809,752.78/152,658.72
6. Step 6: Final answer
   x = 163,716.88