Finding the Fourth Proportional to 137,577.98, 189,773.34 and 91,010.27

Step by Step Solution

1. Step 1: Write the proportion equation
   137,577.98 : 189,773.34 = 91,010.27 : x
2. Step 2: Convert to fraction form
   137,577.98/189,773.34 = 91,010.27/x
3. Step 3: Cross multiply
   137,577.98x = 189,773.34 × 91,010.27
4. Step 4: Simplify right side
   137,577.98x = 17,271,322,912.20
5. Step 5: Solve for x
   x = 17,271,322,912.20/137,577.98
6. Step 6: Final answer
   x = 125,538.42