Finding the Fourth Proportional to 137,577.96, 189,897.90 and 89,838.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,577.96 : 189,897.90 = 89,838.72 : x
2. Step 2: Convert to fraction form
   137,577.96/189,897.90 = 89,838.72/x
3. Step 3: Cross multiply
   137,577.96x = 189,897.90 × 89,838.72
4. Step 4: Simplify right side
   137,577.96x = 17,060,184,266.69
5. Step 5: Solve for x
   x = 17,060,184,266.69/137,577.96
6. Step 6: Final answer
   x = 124,003.76