Finding the Fourth Proportional to 152,715.40, 210,747 and 84,742.84

Step by Step Solution

1. Step 1: Write the proportion equation
   152,715.40 : 210,747 = 84,742.84 : x
2. Step 2: Convert to fraction form
   152,715.40/210,747 = 84,742.84/x
3. Step 3: Cross multiply
   152,715.40x = 210,747 × 84,742.84
4. Step 4: Simplify right side
   152,715.40x = 17,859,299,301.48
5. Step 5: Solve for x
   x = 17,859,299,301.48/152,715.40
6. Step 6: Final answer
   x = 116,944.98