Finding the Fourth Proportional to 191,648.84, 287,466.78 and 58,523.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,648.84 : 287,466.78 = 58,523.72 : x
2. Step 2: Convert to fraction form
   191,648.84/287,466.78 = 58,523.72/x
3. Step 3: Cross multiply
   191,648.84x = 287,466.78 × 58,523.72
4. Step 4: Simplify right side
   191,648.84x = 16,823,625,342.02
5. Step 5: Solve for x
   x = 16,823,625,342.02/191,648.84
6. Step 6: Final answer
   x = 87,783.60