Finding the Fourth Proportional to 77,700.82, 116,586.59 and 37,698.21

Step by Step Solution

1. Step 1: Write the proportion equation
   77,700.82 : 116,586.59 = 37,698.21 : x
2. Step 2: Convert to fraction form
   77,700.82/116,586.59 = 37,698.21/x
3. Step 3: Cross multiply
   77,700.82x = 116,586.59 × 37,698.21
4. Step 4: Simplify right side
   77,700.82x = 4,395,105,776.57
5. Step 5: Solve for x
   x = 4,395,105,776.57/77,700.82
6. Step 6: Final answer
   x = 56,564.47