Finding the Fourth Proportional to 156,986.34, 216,565 and 93,279.03

Step by Step Solution

1. Step 1: Write the proportion equation
   156,986.34 : 216,565 = 93,279.03 : x
2. Step 2: Convert to fraction form
   156,986.34/216,565 = 93,279.03/x
3. Step 3: Cross multiply
   156,986.34x = 216,565 × 93,279.03
4. Step 4: Simplify right side
   156,986.34x = 20,200,973,131.95
5. Step 5: Solve for x
   x = 20,200,973,131.95/156,986.34
6. Step 6: Final answer
   x = 128,679.81