Finding the Fourth Proportional to 78,700.21, 117,964.41 and 38,746.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,700.21 : 117,964.41 = 38,746.69 : x
2. Step 2: Convert to fraction form
   78,700.21/117,964.41 = 38,746.69/x
3. Step 3: Cross multiply
   78,700.21x = 117,964.41 × 38,746.69
4. Step 4: Simplify right side
   78,700.21x = 4,570,730,425.30
5. Step 5: Solve for x
   x = 4,570,730,425.30/78,700.21
6. Step 6: Final answer
   x = 58,077.74