Finding the Fourth Proportional to 191,787.01, 287,670.16 and 58,667.28

Step by Step Solution

1. Step 1: Write the proportion equation
   191,787.01 : 287,670.16 = 58,667.28 : x
2. Step 2: Convert to fraction form
   191,787.01/287,670.16 = 58,667.28/x
3. Step 3: Cross multiply
   191,787.01x = 287,670.16 × 58,667.28
4. Step 4: Simplify right side
   191,787.01x = 16,876,825,531.03
5. Step 5: Solve for x
   x = 16,876,825,531.03/191,787.01
6. Step 6: Final answer
   x = 87,997.75