Finding the Fourth Proportional to 78,713.56, 118,045.50 and 31,308.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,713.56 : 118,045.50 = 31,308.04 : x
2. Step 2: Convert to fraction form
   78,713.56/118,045.50 = 31,308.04/x
3. Step 3: Cross multiply
   78,713.56x = 118,045.50 × 31,308.04
4. Step 4: Simplify right side
   78,713.56x = 3,695,773,235.82
5. Step 5: Solve for x
   x = 3,695,773,235.82/78,713.56
6. Step 6: Final answer
   x = 46,952.18