Finding the Fourth Proportional to 99,360.96, 137,118.15 and 54,648.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,360.96 : 137,118.15 = 54,648.96 : x
2. Step 2: Convert to fraction form
   99,360.96/137,118.15 = 54,648.96/x
3. Step 3: Cross multiply
   99,360.96x = 137,118.15 × 54,648.96
4. Step 4: Simplify right side
   99,360.96x = 7,493,364,294.62
5. Step 5: Solve for x
   x = 7,493,364,294.62/99,360.96
6. Step 6: Final answer
   x = 75,415.58