Finding the Fourth Proportional to 91,301.85, 136,963.71 and 38,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,301.85 : 136,963.71 = 38,704.50 : x
2. Step 2: Convert to fraction form
   91,301.85/136,963.71 = 38,704.50/x
3. Step 3: Cross multiply
   91,301.85x = 136,963.71 × 38,704.50
4. Step 4: Simplify right side
   91,301.85x = 5,301,111,913.70
5. Step 5: Solve for x
   x = 5,301,111,913.70/91,301.85
6. Step 6: Final answer
   x = 58,061.39