Finding the Fourth Proportional to 139,158.07, 192,038.50 and 75,495.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,158.07 : 192,038.50 = 75,495.86 : x
2. Step 2: Convert to fraction form
   139,158.07/192,038.50 = 75,495.86/x
3. Step 3: Cross multiply
   139,158.07x = 192,038.50 × 75,495.86
4. Step 4: Simplify right side
   139,158.07x = 14,498,111,710.61
5. Step 5: Solve for x
   x = 14,498,111,710.61/139,158.07
6. Step 6: Final answer
   x = 104,184.49