Finding the Fourth Proportional to 152,435.60, 210,342.12 and 84,443.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,435.60 : 210,342.12 = 84,443.12 : x
2. Step 2: Convert to fraction form
   152,435.60/210,342.12 = 84,443.12/x
3. Step 3: Cross multiply
   152,435.60x = 210,342.12 × 84,443.12
4. Step 4: Simplify right side
   152,435.60x = 17,761,944,880.21
5. Step 5: Solve for x
   x = 17,761,944,880.21/152,435.60
6. Step 6: Final answer
   x = 116,520.98