Finding the Fourth Proportional to 139,007.88, 191,831.27 and 75,345.93

Step by Step Solution

1. Step 1: Write the proportion equation
   139,007.88 : 191,831.27 = 75,345.93 : x
2. Step 2: Convert to fraction form
   139,007.88/191,831.27 = 75,345.93/x
3. Step 3: Cross multiply
   139,007.88x = 191,831.27 × 75,345.93
4. Step 4: Simplify right side
   139,007.88x = 14,453,705,441.23
5. Step 5: Solve for x
   x = 14,453,705,441.23/139,007.88
6. Step 6: Final answer
   x = 103,977.60