Finding the Fourth Proportional to 139,003.02, 191,818.98 and 75,339.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,003.02 : 191,818.98 = 75,339.46 : x
2. Step 2: Convert to fraction form
   139,003.02/191,818.98 = 75,339.46/x
3. Step 3: Cross multiply
   139,003.02x = 191,818.98 × 75,339.46
4. Step 4: Simplify right side
   139,003.02x = 14,451,538,370.95
5. Step 5: Solve for x
   x = 14,451,538,370.95/139,003.02
6. Step 6: Final answer
   x = 103,965.64