Finding the Fourth Proportional to 91,113.89, 136,680.56 and 38,528.69

Step by Step Solution

1. Step 1: Write the proportion equation
   91,113.89 : 136,680.56 = 38,528.69 : x
2. Step 2: Convert to fraction form
   91,113.89/136,680.56 = 38,528.69/x
3. Step 3: Cross multiply
   91,113.89x = 136,680.56 × 38,528.69
4. Step 4: Simplify right side
   91,113.89x = 5,266,122,925.27
5. Step 5: Solve for x
   x = 5,266,122,925.27/91,113.89
6. Step 6: Final answer
   x = 57,797.15