Finding the Fourth Proportional to 99,895, 137,859.06 and 57,453.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99,895 : 137,859.06 = 57,453.48 : x
2. Step 2: Convert to fraction form
   99,895/137,859.06 = 57,453.48/x
3. Step 3: Cross multiply
   99,895x = 137,859.06 × 57,453.48
4. Step 4: Simplify right side
   99,895x = 7,920,482,746.53
5. Step 5: Solve for x
   x = 7,920,482,746.53/99,895
6. Step 6: Final answer
   x = 79,288.08