Finding the Fourth Proportional to 191,777.83, 287,620.56 and 58,659.22

Step by Step Solution

1. Step 1: Write the proportion equation
   191,777.83 : 287,620.56 = 58,659.22 : x
2. Step 2: Convert to fraction form
   191,777.83/287,620.56 = 58,659.22/x
3. Step 3: Cross multiply
   191,777.83x = 287,620.56 × 58,659.22
4. Step 4: Simplify right side
   191,777.83x = 16,871,597,705.56
5. Step 5: Solve for x
   x = 16,871,597,705.56/191,777.83
6. Step 6: Final answer
   x = 87,974.70