Finding the Fourth Proportional to 152,629.31, 210,628.45 and 84,656.69

Step by Step Solution

1. Step 1: Write the proportion equation
   152,629.31 : 210,628.45 = 84,656.69 : x
2. Step 2: Convert to fraction form
   152,629.31/210,628.45 = 84,656.69/x
3. Step 3: Cross multiply
   152,629.31x = 210,628.45 × 84,656.69
4. Step 4: Simplify right side
   152,629.31x = 17,831,108,424.15
5. Step 5: Solve for x
   x = 17,831,108,424.15/152,629.31
6. Step 6: Final answer
   x = 116,826.24