Finding the Fourth Proportional to 191,774.32, 287,615.33 and 58,655.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,774.32 : 287,615.33 = 58,655.72 : x
2. Step 2: Convert to fraction form
   191,774.32/287,615.33 = 58,655.72/x
3. Step 3: Cross multiply
   191,774.32x = 287,615.33 × 58,655.72
4. Step 4: Simplify right side
   191,774.32x = 16,870,283,970.91
5. Step 5: Solve for x
   x = 16,870,283,970.91/191,774.32
6. Step 6: Final answer
   x = 87,969.47