Finding the Fourth Proportional to 137,597.96, 189,925.50 and 89,858.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,597.96 : 189,925.50 = 89,858.72 : x
2. Step 2: Convert to fraction form
   137,597.96/189,925.50 = 89,858.72/x
3. Step 3: Cross multiply
   137,597.96x = 189,925.50 × 89,858.72
4. Step 4: Simplify right side
   137,597.96x = 17,066,462,325.36
5. Step 5: Solve for x
   x = 17,066,462,325.36/137,597.96
6. Step 6: Final answer
   x = 124,031.36