Finding the Fourth Proportional to 91,086.35, 136,675.98 and 61,442.06

Step by Step Solution

1. Step 1: Write the proportion equation
   91,086.35 : 136,675.98 = 61,442.06 : x
2. Step 2: Convert to fraction form
   91,086.35/136,675.98 = 61,442.06/x
3. Step 3: Cross multiply
   91,086.35x = 136,675.98 × 61,442.06
4. Step 4: Simplify right side
   91,086.35x = 8,397,653,080.34
5. Step 5: Solve for x
   x = 8,397,653,080.34/91,086.35
6. Step 6: Final answer
   x = 92,194.42