Finding the Fourth Proportional to 91,493.45, 137,185.96 and 28,294.86

Step by Step Solution

1. Step 1: Write the proportion equation
   91,493.45 : 137,185.96 = 28,294.86 : x
2. Step 2: Convert to fraction form
   91,493.45/137,185.96 = 28,294.86/x
3. Step 3: Cross multiply
   91,493.45x = 137,185.96 × 28,294.86
4. Step 4: Simplify right side
   91,493.45x = 3,881,657,532.17
5. Step 5: Solve for x
   x = 3,881,657,532.17/91,493.45
6. Step 6: Final answer
   x = 42,425.52