Finding the Fourth Proportional to 165,838.50, 248,796.63 and 55,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   165,838.50 : 248,796.63 = 55,030.50 : x
2. Step 2: Convert to fraction form
   165,838.50/248,796.63 = 55,030.50/x
3. Step 3: Cross multiply
   165,838.50x = 248,796.63 × 55,030.50
4. Step 4: Simplify right side
   165,838.50x = 13,691,402,947.22
5. Step 5: Solve for x
   x = 13,691,402,947.22/165,838.50
6. Step 6: Final answer
   x = 82,558.65