Finding the Fourth Proportional to 168,068.34, 231,931.33 and 91,588.12

Step by Step Solution

1. Step 1: Write the proportion equation
   168,068.34 : 231,931.33 = 91,588.12 : x
2. Step 2: Convert to fraction form
   168,068.34/231,931.33 = 91,588.12/x
3. Step 3: Cross multiply
   168,068.34x = 231,931.33 × 91,588.12
4. Step 4: Simplify right side
   168,068.34x = 21,242,152,866.20
5. Step 5: Solve for x
   x = 21,242,152,866.20/168,068.34
6. Step 6: Final answer
   x = 126,389.98