Finding the Fourth Proportional to 139,951.72, 210,008.88 and 58,892.77

Step by Step Solution

1. Step 1: Write the proportion equation
   139,951.72 : 210,008.88 = 58,892.77 : x
2. Step 2: Convert to fraction form
   139,951.72/210,008.88 = 58,892.77/x
3. Step 3: Cross multiply
   139,951.72x = 210,008.88 × 58,892.77
4. Step 4: Simplify right side
   139,951.72x = 12,368,004,667.80
5. Step 5: Solve for x
   x = 12,368,004,667.80/139,951.72
6. Step 6: Final answer
   x = 88,373.37