Finding the Fourth Proportional to 99,826.42, 137,756.85 and 55,113.46

Step by Step Solution

1. Step 1: Write the proportion equation
   99,826.42 : 137,756.85 = 55,113.46 : x
2. Step 2: Convert to fraction form
   99,826.42/137,756.85 = 55,113.46/x
3. Step 3: Cross multiply
   99,826.42x = 137,756.85 × 55,113.46
4. Step 4: Simplify right side
   99,826.42x = 7,592,256,642.20
5. Step 5: Solve for x
   x = 7,592,256,642.20/99,826.42
6. Step 6: Final answer
   x = 76,054.58