Finding the Fourth Proportional to 99,696.54, 137,580.69 and 54,373.67

Step by Step Solution

1. Step 1: Write the proportion equation
   99,696.54 : 137,580.69 = 54,373.67 : x
2. Step 2: Convert to fraction form
   99,696.54/137,580.69 = 54,373.67/x
3. Step 3: Cross multiply
   99,696.54x = 137,580.69 × 54,373.67
4. Step 4: Simplify right side
   99,696.54x = 7,480,767,036.43
5. Step 5: Solve for x
   x = 7,480,767,036.43/99,696.54
6. Step 6: Final answer
   x = 75,035.37