Finding the Fourth Proportional to 91,128.53, 136,627.18 and 55,995.59

Step by Step Solution

1. Step 1: Write the proportion equation
   91,128.53 : 136,627.18 = 55,995.59 : x
2. Step 2: Convert to fraction form
   91,128.53/136,627.18 = 55,995.59/x
3. Step 3: Cross multiply
   91,128.53x = 136,627.18 × 55,995.59
4. Step 4: Simplify right side
   91,128.53x = 7,650,519,554.14
5. Step 5: Solve for x
   x = 7,650,519,554.14/91,128.53
6. Step 6: Final answer
   x = 83,953.07