Finding the Fourth Proportional to 99,493.34, 137,300.73 and 54,781.34

Step by Step Solution

1. Step 1: Write the proportion equation
   99,493.34 : 137,300.73 = 54,781.34 : x
2. Step 2: Convert to fraction form
   99,493.34/137,300.73 = 54,781.34/x
3. Step 3: Cross multiply
   99,493.34x = 137,300.73 × 54,781.34
4. Step 4: Simplify right side
   99,493.34x = 7,521,517,972.38
5. Step 5: Solve for x
   x = 7,521,517,972.38/99,493.34
6. Step 6: Final answer
   x = 75,598.21