Finding the Fourth Proportional to 156,314.72, 215,714.94 and 84,694.52

Step by Step Solution

1. Step 1: Write the proportion equation
   156,314.72 : 215,714.94 = 84,694.52 : x
2. Step 2: Convert to fraction form
   156,314.72/215,714.94 = 84,694.52/x
3. Step 3: Cross multiply
   156,314.72x = 215,714.94 × 84,694.52
4. Step 4: Simplify right side
   156,314.72x = 18,269,873,300.13
5. Step 5: Solve for x
   x = 18,269,873,300.13/156,314.72
6. Step 6: Final answer
   x = 116,878.78