Finding the Fourth Proportional to 152,789.72, 210,852.06 and 84,811.07

Step by Step Solution

1. Step 1: Write the proportion equation
   152,789.72 : 210,852.06 = 84,811.07 : x
2. Step 2: Convert to fraction form
   152,789.72/210,852.06 = 84,811.07/x
3. Step 3: Cross multiply
   152,789.72x = 210,852.06 × 84,811.07
4. Step 4: Simplify right side
   152,789.72x = 17,882,588,820.30
5. Step 5: Solve for x
   x = 17,882,588,820.30/152,789.72
6. Step 6: Final answer
   x = 117,040.52