Finding the Fourth Proportional to 141,779.91, 195,654.72 and 81,360.06

Step by Step Solution

1. Step 1: Write the proportion equation
   141,779.91 : 195,654.72 = 81,360.06 : x
2. Step 2: Convert to fraction form
   141,779.91/195,654.72 = 81,360.06/x
3. Step 3: Cross multiply
   141,779.91x = 195,654.72 × 81,360.06
4. Step 4: Simplify right side
   141,779.91x = 15,918,479,758.48
5. Step 5: Solve for x
   x = 15,918,479,758.48/141,779.91
6. Step 6: Final answer
   x = 112,275.99