Finding the Fourth Proportional to 152,887.89, 210,986.57 and 84,906.00

Step by Step Solution

1. Step 1: Write the proportion equation
   152,887.89 : 210,986.57 = 84,906.00 : x
2. Step 2: Convert to fraction form
   152,887.89/210,986.57 = 84,906.00/x
3. Step 3: Cross multiply
   152,887.89x = 210,986.57 × 84,906.00
4. Step 4: Simplify right side
   152,887.89x = 17,914,026,867.92
5. Step 5: Solve for x
   x = 17,914,026,867.92/152,887.89
6. Step 6: Final answer
   x = 117,171.00