Finding the Fourth Proportional to 99,748.50, 137,652.93 and 55,036.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,748.50 : 137,652.93 = 55,036.50 : x
2. Step 2: Convert to fraction form
   99,748.50/137,652.93 = 55,036.50/x
3. Step 3: Cross multiply
   99,748.50x = 137,652.93 × 55,036.50
4. Step 4: Simplify right side
   99,748.50x = 7,575,935,481.95
5. Step 5: Solve for x
   x = 7,575,935,481.95/99,748.50
6. Step 6: Final answer
   x = 75,950.37