Finding the Fourth Proportional to 191,775.33, 287,616.81 and 58,656.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,775.33 : 287,616.81 = 58,656.72 : x
2. Step 2: Convert to fraction form
   191,775.33/287,616.81 = 58,656.72/x
3. Step 3: Cross multiply
   191,775.33x = 287,616.81 × 58,656.72
4. Step 4: Simplify right side
   191,775.33x = 16,870,658,691.46
5. Step 5: Solve for x
   x = 16,870,658,691.46/191,775.33
6. Step 6: Final answer
   x = 87,970.95