Finding the Fourth Proportional to 91,981.74, 137,989.71 and 32,007.72

Step by Step Solution

1. Step 1: Write the proportion equation
   91,981.74 : 137,989.71 = 32,007.72 : x
2. Step 2: Convert to fraction form
   91,981.74/137,989.71 = 32,007.72/x
3. Step 3: Cross multiply
   91,981.74x = 137,989.71 × 32,007.72
4. Step 4: Simplify right side
   91,981.74x = 4,416,736,000.56
5. Step 5: Solve for x
   x = 4,416,736,000.56/91,981.74
6. Step 6: Final answer
   x = 48,017.53