Finding the Fourth Proportional to 99,918.84, 137,886.33 and 54,595.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,918.84 : 137,886.33 = 54,595.83 : x
2. Step 2: Convert to fraction form
   99,918.84/137,886.33 = 54,595.83/x
3. Step 3: Cross multiply
   99,918.84x = 137,886.33 × 54,595.83
4. Step 4: Simplify right side
   99,918.84x = 7,528,018,632.00
5. Step 5: Solve for x
   x = 7,528,018,632.00/99,918.84
6. Step 6: Final answer
   x = 75,341.33