Finding the Fourth Proportional to 64,300.77, 96,786.45 and 58,188.06

Step by Step Solution

1. Step 1: Write the proportion equation
   64,300.77 : 96,786.45 = 58,188.06 : x
2. Step 2: Convert to fraction form
   64,300.77/96,786.45 = 58,188.06/x
3. Step 3: Cross multiply
   64,300.77x = 96,786.45 × 58,188.06
4. Step 4: Simplify right side
   64,300.77x = 5,631,815,759.79
5. Step 5: Solve for x
   x = 5,631,815,759.79/64,300.77
6. Step 6: Final answer
   x = 87,585.51