Finding the Fourth Proportional to 78,761.88, 118,009.12 and 47,531.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,761.88 : 118,009.12 = 47,531.52 : x
2. Step 2: Convert to fraction form
   78,761.88/118,009.12 = 47,531.52/x
3. Step 3: Cross multiply
   78,761.88x = 118,009.12 × 47,531.52
4. Step 4: Simplify right side
   78,761.88x = 5,609,152,847.46
5. Step 5: Solve for x
   x = 5,609,152,847.46/78,761.88
6. Step 6: Final answer
   x = 71,216.59