Finding the Fourth Proportional to 78,737.60, 118,071.75 and 28,804.74

Step by Step Solution

1. Step 1: Write the proportion equation
   78,737.60 : 118,071.75 = 28,804.74 : x
2. Step 2: Convert to fraction form
   78,737.60/118,071.75 = 28,804.74/x
3. Step 3: Cross multiply
   78,737.60x = 118,071.75 × 28,804.74
4. Step 4: Simplify right side
   78,737.60x = 3,401,026,060.10
5. Step 5: Solve for x
   x = 3,401,026,060.10/78,737.60
6. Step 6: Final answer
   x = 43,194.44