Finding the Fourth Proportional to 191,799.91, 287,689.39 and 58,680.18

Step by Step Solution

1. Step 1: Write the proportion equation
   191,799.91 : 287,689.39 = 58,680.18 : x
2. Step 2: Convert to fraction form
   191,799.91/287,689.39 = 58,680.18/x
3. Step 3: Cross multiply
   191,799.91x = 287,689.39 × 58,680.18
4. Step 4: Simplify right side
   191,799.91x = 16,881,665,189.29
5. Step 5: Solve for x
   x = 16,881,665,189.29/191,799.91
6. Step 6: Final answer
   x = 88,017.07