Finding the Fourth Proportional to 78,886.34, 108,862.89 and 47,056.58

Step by Step Solution

1. Step 1: Write the proportion equation
   78,886.34 : 108,862.89 = 47,056.58 : x
2. Step 2: Convert to fraction form
   78,886.34/108,862.89 = 47,056.58/x
3. Step 3: Cross multiply
   78,886.34x = 108,862.89 × 47,056.58
4. Step 4: Simplify right side
   78,886.34x = 5,122,715,292.32
5. Step 5: Solve for x
   x = 5,122,715,292.32/78,886.34
6. Step 6: Final answer
   x = 64,937.93