Finding the Fourth Proportional to 101,238.41, 152,013.67 and 85,648.29

Step by Step Solution

1. Step 1: Write the proportion equation
   101,238.41 : 152,013.67 = 85,648.29 : x
2. Step 2: Convert to fraction form
   101,238.41/152,013.67 = 85,648.29/x
3. Step 3: Cross multiply
   101,238.41x = 152,013.67 × 85,648.29
4. Step 4: Simplify right side
   101,238.41x = 13,019,710,678.00
5. Step 5: Solve for x
   x = 13,019,710,678.00/101,238.41
6. Step 6: Final answer
   x = 128,604.46