Finding the Fourth Proportional to 99,075.39, 136,724.04 and 56,634.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,075.39 : 136,724.04 = 56,634.83 : x
2. Step 2: Convert to fraction form
   99,075.39/136,724.04 = 56,634.83/x
3. Step 3: Cross multiply
   99,075.39x = 136,724.04 × 56,634.83
4. Step 4: Simplify right side
   99,075.39x = 7,743,342,762.31
5. Step 5: Solve for x
   x = 7,743,342,762.31/99,075.39
6. Step 6: Final answer
   x = 78,156.07