Finding the Fourth Proportional to 78,909.77, 108,893.72 and 43,099.91

Step by Step Solution

1. Step 1: Write the proportion equation
   78,909.77 : 108,893.72 = 43,099.91 : x
2. Step 2: Convert to fraction form
   78,909.77/108,893.72 = 43,099.91/x
3. Step 3: Cross multiply
   78,909.77x = 108,893.72 × 43,099.91
4. Step 4: Simplify right side
   78,909.77x = 4,693,309,531.57
5. Step 5: Solve for x
   x = 4,693,309,531.57/78,909.77
6. Step 6: Final answer
   x = 59,476.91