Finding the Fourth Proportional to 99,606.88, 137,457.52 and 54,894.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,606.88 : 137,457.52 = 54,894.88 : x
2. Step 2: Convert to fraction form
   99,606.88/137,457.52 = 54,894.88/x
3. Step 3: Cross multiply
   99,606.88x = 137,457.52 × 54,894.88
4. Step 4: Simplify right side
   99,606.88x = 7,545,714,065.50
5. Step 5: Solve for x
   x = 7,545,714,065.50/99,606.88
6. Step 6: Final answer
   x = 75,754.95