Finding the Fourth Proportional to 99,751.31, 137,656.73 and 63,941.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,751.31 : 137,656.73 = 63,941.31 : x
2. Step 2: Convert to fraction form
   99,751.31/137,656.73 = 63,941.31/x
3. Step 3: Cross multiply
   99,751.31x = 137,656.73 × 63,941.31
4. Step 4: Simplify right side
   99,751.31x = 8,801,951,806.37
5. Step 5: Solve for x
   x = 8,801,951,806.37/99,751.31
6. Step 6: Final answer
   x = 88,238.96