Finding the Fourth Proportional to 91,816.02, 137,594.70 and 73,012.61

Step by Step Solution

1. Step 1: Write the proportion equation
   91,816.02 : 137,594.70 = 73,012.61 : x
2. Step 2: Convert to fraction form
   91,816.02/137,594.70 = 73,012.61/x
3. Step 3: Cross multiply
   91,816.02x = 137,594.70 × 73,012.61
4. Step 4: Simplify right side
   91,816.02x = 10,046,148,513.15
5. Step 5: Solve for x
   x = 10,046,148,513.15/91,816.02
6. Step 6: Final answer
   x = 109,416.07