Finding the Fourth Proportional to 91,095.55, 125,770.35 and 57,150.58

Step by Step Solution

1. Step 1: Write the proportion equation
   91,095.55 : 125,770.35 = 57,150.58 : x
2. Step 2: Convert to fraction form
   91,095.55/125,770.35 = 57,150.58/x
3. Step 3: Cross multiply
   91,095.55x = 125,770.35 × 57,150.58
4. Step 4: Simplify right side
   91,095.55x = 7,187,848,449.30
5. Step 5: Solve for x
   x = 7,187,848,449.30/91,095.55
6. Step 6: Final answer
   x = 78,904.50