Finding the Fourth Proportional to 152,171.93, 209,997.10 and 85,103.93

Step by Step Solution

1. Step 1: Write the proportion equation
   152,171.93 : 209,997.10 = 85,103.93 : x
2. Step 2: Convert to fraction form
   152,171.93/209,997.10 = 85,103.93/x
3. Step 3: Cross multiply
   152,171.93x = 209,997.10 × 85,103.93
4. Step 4: Simplify right side
   152,171.93x = 17,871,578,498.60
5. Step 5: Solve for x
   x = 17,871,578,498.60/152,171.93
6. Step 6: Final answer
   x = 117,443.33