Finding the Fourth Proportional to 152,939.82, 211,049.82 and 84,961.20

Step by Step Solution

1. Step 1: Write the proportion equation
   152,939.82 : 211,049.82 = 84,961.20 : x
2. Step 2: Convert to fraction form
   152,939.82/211,049.82 = 84,961.20/x
3. Step 3: Cross multiply
   152,939.82x = 211,049.82 × 84,961.20
4. Step 4: Simplify right side
   152,939.82x = 17,931,045,966.98
5. Step 5: Solve for x
   x = 17,931,045,966.98/152,939.82
6. Step 6: Final answer
   x = 117,242.49