Finding the Fourth Proportional to 99,019.50, 136,655.55 and 54,316.14

Step by Step Solution

1. Step 1: Write the proportion equation
   99,019.50 : 136,655.55 = 54,316.14 : x
2. Step 2: Convert to fraction form
   99,019.50/136,655.55 = 54,316.14/x
3. Step 3: Cross multiply
   99,019.50x = 136,655.55 × 54,316.14
4. Step 4: Simplify right side
   99,019.50x = 7,422,601,985.58
5. Step 5: Solve for x
   x = 7,422,601,985.58/99,019.50
6. Step 6: Final answer
   x = 74,961.01