Finding the Fourth Proportional to 152,645.31, 210,630.78 and 84,662.01

Step by Step Solution

1. Step 1: Write the proportion equation
   152,645.31 : 210,630.78 = 84,662.01 : x
2. Step 2: Convert to fraction form
   152,645.31/210,630.78 = 84,662.01/x
3. Step 3: Cross multiply
   152,645.31x = 210,630.78 × 84,662.01
4. Step 4: Simplify right side
   152,645.31x = 17,832,425,202.67
5. Step 5: Solve for x
   x = 17,832,425,202.67/152,645.31
6. Step 6: Final answer
   x = 116,822.62