Finding the Fourth Proportional to 191,422.49, 287,050.46 and 58,271.56

Step by Step Solution

1. Step 1: Write the proportion equation
   191,422.49 : 287,050.46 = 58,271.56 : x
2. Step 2: Convert to fraction form
   191,422.49/287,050.46 = 58,271.56/x
3. Step 3: Cross multiply
   191,422.49x = 287,050.46 × 58,271.56
4. Step 4: Simplify right side
   191,422.49x = 16,726,877,093.93
5. Step 5: Solve for x
   x = 16,726,877,093.93/191,422.49
6. Step 6: Final answer
   x = 87,381.99