Finding the Fourth Proportional to 91,131.04, 136,630.94 and 55,998.10

Step by Step Solution

1. Step 1: Write the proportion equation
   91,131.04 : 136,630.94 = 55,998.10 : x
2. Step 2: Convert to fraction form
   91,131.04/136,630.94 = 55,998.10/x
3. Step 3: Cross multiply
   91,131.04x = 136,630.94 × 55,998.10
4. Step 4: Simplify right side
   91,131.04x = 7,651,073,041.21
5. Step 5: Solve for x
   x = 7,651,073,041.21/91,131.04
6. Step 6: Final answer
   x = 83,956.83