Finding the Fourth Proportional to 99,818.52, 137,749.64 and 55,106.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,818.52 : 137,749.64 = 55,106.52 : x
2. Step 2: Convert to fraction form
   99,818.52/137,749.64 = 55,106.52/x
3. Step 3: Cross multiply
   99,818.52x = 137,749.64 × 55,106.52
4. Step 4: Simplify right side
   99,818.52x = 7,590,903,291.65
5. Step 5: Solve for x
   x = 7,590,903,291.65/99,818.52
6. Step 6: Final answer
   x = 76,047.04